Teacher:In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Teacher: Now, understand the problem? Solve this instance: Thousands of students checked their phones Wednesday morning after receiving an alert about police activity on campus. The next notice was more dire. 
  
 “Shooting at Engineering 4. Go to secure location and deny entry (lockdown) now!” the BruinAlert said. 
  
 Tommaso Bulfone, a fourth-year human biology and society student, who was in class when the alert was sent, said students began closing the blinds and barricading the doors. 
  
 But in other locations, the response was characterized by a lack of urgency. 
  
 READ MORE: Full coverage of Wednesday’s murder-suicide, campus reactions. 
  
 Salwa Zahid, a third-year molecular, cellular and developmental biology student, said students continued to study in Powell Library as the situation unfolded. 
  
 “I heard people in other buildings were bolting their doors shut,” Zahid said. “(Here) no one was really screaming or moving around a lot.” 
  
 Tracy Nguyen, a second-year psychobiology student, said she saw people calmly crossing the De Neve crosswalk toward campus even after she received a second alert ordering students to proceed to a lockdown. 
  
 Nguyen added she thinks it took an hour and a half after the first BruinAlert for staff to fully lock down the Hill. 
  
 In some morning classes, professors also allowed students to come in and out of classes despite the lockdown announcement. 
  
 Armin Takallou, a second-year human biology and society student, said students spoke up to say they did not feel comfortable with their professor continuing the lecture. 
  
 “The professor said he was going to keep lecturing until someone told him to stop,” said Takallou. “It didn’t sound like the professor was very concerned.” 
  
 Takallou added he thinks it would have been helpful if professors followed a planned protocol during the lockdown. 
  
 Students on lockdown shared hearsay about multiple shooters throughout campus, scores of casualties and high-powered weapons across social media networks and by word of mouth. 
  
 Hannah Ross, a first-year undeclared student, woke up to her roommate watching news coverage of the shooting on her laptop. 
  
 Ross said she heard numerous rumors about shooters on the Hill, including gunmen near Sproul Hall. Officials later confirmed there was only one shooter in the Engineering IV building. 
  
 “It was way more scary than it needed to be,” she said. 
  
 Ross remained in a friend’s room during the lockdown watching live video of the campus response. 
  
 When officials sent out an official alert declaring the campus as safe, students streamed out of their shelters, phones glued to their ears as they assured friends and family of their safety. 
  
 Noel Battle, a fourth-year sociology student, spent two hours under lockdown in Community Programs Office in the Student Activities Center before she heard the order declaring the campus safe. 
  
 “Some people rushed out as fast as they could, but some were still quietly sitting on the ground when I left,” Battle said. “They were hesitant and taking their time to leave.” 
  
 Jacqueline Bravo, a fourth-year economics and Spanish student, said the campus response to the shooting left her confused and shaken. 
  
 “There were so many rumors flying around, but you’re locked down and don’t actually know what’s happening,” Bravo said. “You think that something like this could never happen here, but you’re actually living it.” 
  
 Contributing reports by Allison Ong, Janae Yip, Evolet Chiu, and Laurel Scott, Bruin staff. ||||| Another college campus fell victim to deadly gun violence Wednesday after a student shot a professor to death before killing himself at UCLA’s engineering school, a police source said. 
  
 Los Angeles Police Chief Charlie Beck declared the campus safe about two hours after shots rang out at Boelter Hall, a science and engineering building. 
  
 “It appears that it is entirely contained,” Beck told reporters. “We believe there are no suspects outstanding and no continuing threat to UCLA’s campus.” 
  
 A gun was found at the scene, he added. 
  
 UCLA student was also at UC Santa Barbara during 2014 massacre 
  
 “There is evidence that there could be a suicide note, but we do not know that,” Beck said. 
  
 Police respond to a fatal shooting at the University of California, Los Angeles, Wednesday. (KABC-7/AP) 
  
 He said both men were pronounced dead at the scene. 
  
 "It was a student who shot a professor," a police source told the Daily News. The professor was later identified as William Klug of the school’s engineering department. Neighbors in Klug’s El Segundo community described the 39-year-old as the kindhearted married father of two.The coroner’s office said the shooter was in his 30s and from out of state. 
  
 Hours earlier, the campus was put on lockdown as police scrambled to find the shooter, who was wrongly believed to still be at large for several hours after the shooting was reported at 10 a.m. 
  
 Debra Messing slammed for selfie during UCLA shooting; apologizes 
  
 Scared students and teachers hunkered down in classrooms that were turned into bunkers as cops scoured the campus for a “gunman” in a black jacket and black pants. 
  
 William S. Klug, a professor at UCLA, was a victim in Wednesday's shooting. (via Google Plus) 
  
 “They’re in the middle of finals,” Beck said of the students. “This is a very stressful time for them and we’re trying to alleviate this.” 
  
 Student Amber Latif, was stuck in a campus library with about 50 students when the lockdown was put in place. 
  
 “We were crowded together just keeping each other safe,” she told CNN. 
  
 11 of the bloodiest school shootings since Columbine 
  
 "Go to a secure location and deny entry (lockdown) now!" the university wrote in the message to students. 
  
 Los Angeles was placed on a "tactical alert citywide," LAPD Capt. Andy Neiman told a group of reporters. 
  
 Aerial video of the campus showed police and emergency responders surrounding Boelter Hall and a nearby parking garage. The building is part of the university’s Henry Samueli School of Engineering and Applied Science. 
  
 Some of the students had to put their engineering skills to work, rigging contraptions to secure doors that did not lock. 
  
 Tom Arnold pushes gun control reform after nephew kills himself 
  
 “The doors open outward and we can’t lock them so we are barricading things in front of the door,” tweeted student Jason Schechter. 
  
 “Some students used a belt to lock the door and we later turned off the light,” said student Zach Lin. 
  
 FBI and ATF agents also responded to the shooting. 
  
 "The whole campus just started running and I started running too," Mehwish Khan, 21, told the Los Angeles Times. "Everyone was very confused. We got into the [library], and no one knew what was going on." 
  
 The university's graduation is less than one week away. 
  
 An FBI SWAT team arrives at the scene at UCLA. (Nick Ut/AP) 
  
 Students and friends of Klug remembered the professor on Wednesday night, saying that his death was "a huge tragedy." 
  
 Sarthak Gulati said on Facebook that the victim "was always there to help me out and he was so sincered with everything he said." 
  
 Klug's neighbor Theresa Casey, herself a UCLA graduate, told the News that he was "was a wonderful guy and a wonderful parent" who would often play in park with his fourth-grade son and first-grade daughter. 
  
 "He spent all his free time with his kids. He was a great dad," she said. 
  
 Students leave the scene after the UCLA shooting. (Ringo H.W. Chiu/AP) 
  
 Wednesday's gunfire marks the second shooting in recent years at a University of California campus. In 2014, gunman Elliot Rodger killed six people near the campus of University of California, Santa Barbara, about 100 miles northwest of UCLA. 
  
 The 22-year-old — who recorded a chilling, sexist video manifesto before his rampage — targeted a sorority house, but no one answered the door, so he opened fire on passersby before later turning his weapon on himself. 
  
 The UCLA campus is located 70 miles west of San Bernardino, where a gun-toting couple killed 14 people at an office holiday party in San Bernardino in a December attack. 
  
 With MEG WAGNER, TOBIAS SALINGER ||||| LOS ANGELES (AP) — In the minutes after a fatal shooting at a UCLA engineering building, panicked students seeking a safe place to hide used belts, cords and other items to try to secure doors they said did not lock. 
  
 With rumors swirling that there could be as many as four shooters, senior Daphne Ying, 21, and others struggled to secure a door that swings out into a hallway of the building. 
  
 They tied one end of a long cord to the doorknob and the other end to a chair bolted to the floor. Three male students stood near the door to pull it shut in case someone tried to get in. 
  
 "All of us were really scared and nervous," Ying said. "We barely spoke." 
  
 Engineering student Pranasha Shrestha's design class was ending across from the engineering building when students got a text alert to shelter in place. She and others retreated to the classroom and quickly realized the doors didn't lock. 
  
 "Doors open outward with no locks so we had to improvise our own locking mechanism," the 22-year-old Shrestha tweeted. 
  
 She said one clearly shaken student grabbed his belt and looped it in a figure eight around the door handle and a handrail, then placed a water bottle inside a loop to keep it taut. 
  
 Another belt, tables and chairs were used to secure a second door, and the professor suggested everyone stand behind a concrete section of wall as protection from possible bullets. 
  
 About two hours later, students learned the shooting had been a murder-suicide that claimed the lives of two men and was confined to one office. 
  
 Students posted photos and video of the makeshift security on social media, sparking questions over safety on the campus. 
  
 Scott Waugh, an executive vice chancellor and provost at the school, told reporters that university officials were troubled by some reports of unlocked doors. 
  
 "We'll review the locks on the doors and any security issue that has arisen in the course of today," Waugh said. 
  
 The campus website tells students and teachers coping with the threat of an active shooter to stay inside rooms and offices, secure doors, turn off lights and stay quiet. 
  
 "If the door has no lock and the door opens in, a heavy door wedge can be kept on hand and used," the website says. "Otherwise look for heavy furniture to barricade the door. If the door has a window, cover it." 
  
 The recommendations also include considering windows as exits depending on the location of a shooter. 
  
 Umar Rehman, a 21-year-old student who was in the adjacent building when the shooting occurred, said he was terrified as he and other students lay on the ground in a room and watched the unlocked door. 
  
 The group decided to hold the door closed and demand identification from anyone who tried to get in. But eventually they got word that the building had been cleared and they walked out. 
  
 "I'm glad to come out of it safe and sound," he said. 
  
 ___ 
  
 AP writers Christopher Weber contributed to this report from Los Angeles. Hartounian reported from Phoenix. 
  
 ___ 
  
 Follow Amanda Lee Myers on Twitter at https://twitter.com/AmandaLeeAP. Her work can be found at http://bigstory.ap.org/content/amanda-lee-myers. Follow Hartounian on Twitter at https://twitter.com/ahartoun. |||||
Student:
The victim in Wednesday's murder-suicide at UCLA has been identified as mechanical engineering professor William Klug—and he may have been killed by one of his own students. The gunman has not been identified, but a KNX reporter tweeted that a law enforcement source told her the gunman was "apparently despondent about his grades." Police, however, have not confirmed a motive. The coroner's office says the shooter is a man in his 30s from out of state, per the New York Daily News. Colleagues describe Klug, who had two young children, as both brilliant and kind, the Los Angeles Times reports. "You cannot ask for a nicer, gentler, sweeter, and more supportive guy than William Klug," says Alan Garfinkel, a professor who worked with Klug on a computer-generated heart. Another development to emerge: Engineering students had to create their own door locks during the ordeal. The Wednesday morning shooting caused confusion and panic on campus, the Daily Bruin reports, with rumors spreading about up to four shooters and dozens of victims. But despite warnings, some professors allowed students to enter and leave classes after a lockdown was announced, and students in the engineering building where the shooting took place were alarmed to discover that their classroom doors did not lock. The AP reports that the students put their engineering skills to work, improvising their own locking mechanisms using belts, chairs, and water bottles. A university spokesman says officials are troubled by reports of doors that couldn't be locked during a lockdown and they plan to review security issues.