Definition: In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Input: A 16-year-old male runner is dead after being mauled by a black bear during a race in Bird Creek Sunday. 
  
 The teen, identified Monday as 16-year-old Patrick Cooper, was running the Bird Ridge Junior Divison race when he got lost and veered off the trail, according to Park Ranger Tom Crockett with Chugach State Park. Shortly after, he called his brother, who was also racing, to say he was being attacked by a bear, Crockett added. The brother was near the finish line when it happened and ran to race officials for help. He also notified their mother. 
  
 Searchers were able to figure out where Patrick was by tracking his cell phone. 
  
 People in the area volunteered to help find the teen. The first person to find Patrick’s body was Anchorage Assemblyman John Weddleton who warned others to get back. 
  
 “So, I got kind of through the brush, down a couple a hundred feet off the trail and… the bear came rushing out of some bushes,” Weddleton said. “So, I’m yelling ‘bear!’ to warn the other people — ‘Bear, Bear, Bear!'” 
  
 Troopers and Park Rangers saw the black bear and shot at it but say it may still be out there. Crockett said the bear seemed to be a predatory bear, as opposed to a defensive, which is rare. 
  
 The area where the boy was found was rugged, so, the fire department called National Guard PJs (Pararescue Crew) who retrieved the body by helicopter. 
  
 Race Director Brad Precosky said he saw a brown bear when the race started but went back and the bear was gone. 
  
 Currently, the Bird Ridge parking lot is closed at both ends. 
  
 Park Rangers say they made a sweep of the trail to make sure no one else was up there. They plan to look more for the bear on Monday. ||||| A 16-year-old runner in a Bird Ridge mountain race was killed by a black bear he apparently encountered while descending the trail Sunday, Alaska State Troopers and the race director said. 
  
 The victim was identified by troopers as Patrick Cooper of Anchorage. 
  
 A Chugach State Park ranger shot the bear in the face, but it ran away. Rangers and the Alaska Department of Fish and Game were still looking for the animal Sunday night on the slope overlooking Turnagain Arm southeast of Anchorage. 
  
 Cooper was a participant in the juniors division of the Robert Spurr Memorial Hill Climb, said race director Brad Precosky. The close-knit Alaska mountain running community is in shock at the fatal mauling, he said. 
  
 "This is the worst thing that could happen," he said. 
  
 The popular mountain race is in its 29th year. The steep course takes adult runners up Bird Ridge, a familiar mountain that looms over the Seward Highway at about Mile 100. 
  
 Racers descend at their leisure. Juniors race to the halfway point, about 1.5 miles from the start, before heading down. 
  
 The runner had apparently made it to the halfway point turnaround and was on his way down when he used his phone to text a family member at 12:37 p.m. that he was being chased by a bear, Precosky said. The family member approached Precosky, who was then in the middle of handing out awards. 
  
 "I went off and talked to him about it, trying to get a straight story," Precosky said. "He was very shaken and had received this communication." 
  
 A search was launched immediately, Precosky said. The family member had GPS coordinates from the missing runner's phone that helped guide searchers to the area where his phone was. But the searchers, including runners that were part of the race, couldn't get closer. 
  
 "The bear was remaining in the area where the young man was laying," said Tom Crockett, a park ranger with Chugach State Park. 
  
 Cooper was found about a mile from the trailhead about 500 yards off the trail in steep, heavily wooded terrain at about a 30-degree slope, Crockett said. It was not clear how the runner got off the trail, or if he had been chased by the bear to the spot. 
  
 A park ranger shot the bear in the face, Crockett said. 
  
 "It did definitely take a slug strike to the face when the ranger fired on it," Crockett said. "We know he struck it." 
  
 The black bear, estimated to be about 250 pounds, was alone, Crockett said. Rangers don't know why it attacked the runner. They are trying to locate and kill the wounded animal. 
  
 Crockett said bear encounters are not common on Bird Ridge. He hadn't heard any reports of bear sightings in the area during the previous week. 
  
 Pararescuers with the Alaska Air National Guard used a helicopter hoist to take Cooper's body away from the scene, said Sgt. Nathan Mitchell with the Anchorage Police Department. 
  
 "This young man didn't do anything wrong. He was just in the wrong place," Crockett said. "You can't predict which bear is going to be predatory." 
  
 The Bird Ridge trailhead and parking lot will be closed until the bear is located, Crockett said. ||||| UPDATE, 4:45 p.m. WEDNESDAY: On Tuesday evening, the Alaska Department of Fish and Game shot and killed four bears. One of the dead black bears is believed to be responsible for Sunday's fatal Bird Ridge mauling. 
  
 Read the full story, here. 
  
 UPDATE, 10:35 a.m. MONDAY: Alaska State Troopers have identified the victim of Sunday's bear mauling at Bird Ridge as 16-year-old Patrick Cooper of Anchorage. 
  
 ORIGINAL STORY: 
  
 A parent's worst nightmare came to life this Father's Day when a teen running an annual trail race was fatally mauled by a bear near Bird Creek. 
  
 Law enforcement officials and fellow competitors said a 16-year-old boy was participating in the Robert Spurr Memorial Hill Climb at Bird Ridge, which was being run for the 29th year straight. 
  
 Dozens of runners, including the teen, toed the starting line that morning for the mountain race that begins at the start of Bird Ridge Trail, and meanders through heavily wooded terrain. As for the ascent, that's a 3,400-foot vertical climb that spans three miles for adult racers and half that for juniors, those who are 17 and younger taking on the mountain. 
  
 Challenging terrain, but in those three decades, many said the territory had never proven to be a big problem. 
  
 That all changed shortly after noon Sunday. 
  
 "I've been running in the mountains for 30 years," said Race Director Brad Precosky. "People come down off the trail and say they've run into a bear. Sometimes that means nothing; other times, it's really serious. Like this." 
  
 The teenager, who police said is from Alaska, reportedly sent out a text message to a family member during his descent of the trail after the all-uphill race sometime around 12:30. 
  
 "One of the brothers of the kid that was up there ran down and came to talk to me, and said his brother was in trouble," Procosky said, "that he was being chased by a bear." 
  
 The mother was also there with her family, including multiple children who were part of the race, according to Anchorage Police Dept. Sgt. Nathan Mitchell. 
  
 Precosky said the teen's fellow competitors lost him in thick brush when he went off the trail. When one of the runners came barreling down the trail saying there had been an attack, he said, the entire race crew went into crisis mode. 
  
 Other runners, many of whom had completed the race, immediately volunteered to be part of the search for the boy. They returned - weaponless - to the trail. 
  
 "There were probably a dozen mountain runners up there keeping the bear on its toes," Precosky said. "They had the coordinates and GPS, and that's how they found him. 
  
 "I got a text saying the GPS coordinates were accurate," he said, "that the bear was onsite guarding the body, and they needed a weapon." 
  
 Another one of the runners said he saw a bear circling the teen somewhere off the beaten path. 
  
 John Weddleton, who didn't win a lottery spot for the race this year but attended to cheer his fellow runners on, was first to find the boy after the attack. 
  
 "I ran up to cheer, came down, and thought, I might as well go back up," he said. "All I knew was there was a boy missing, and missing in bear country." 
  
 He was on his own after splitting off from the main search party when he heard the rustle of a bear. 
  
 "I heard something above me and thought, maybe that's him," Weddleton said. "The bear came by me, maybe about 10 feet away, and then I saw [the teen]. No motion. He looked awful." 
  
 The police department received a call reporting the mauling around 3 p.m. Sunday afternoon. 
  
 "We didn't have a whole lot of info initially," Mitchell said, "so we started sending assets. It sounded like park rangers were ahead of us, but they didn't have any long guns. 
  
 "There really wasn't much here when we arrived," he said. "Just people pointing up at the trail." 
  
 APD, the Anchorage Fire Dept., Alaska State Troopers, the National Guard, and park rangers were all part of the search. 
  
 "We got word that it didn't look good when we got eyes on the bear around 2:30," Precosky said. "This is not - it's not something I want to see." 
  
 What was described by police as "a large black bear" that attacked the boy wasn't the only one in the area Sunday afternoon. Runners reported seeing multiple bears while along the trail during the race. 
  
 "There was a brown bear sighting, there was a black bear with cubs sighting," Precosky said. "We didn't know which was which." 
  
 After an extended search through extreme terrain, the boy was eventually located off the main trail, about a mile up the path at about 1500 vertical feet. 
  
 "The terrain was really, really rugged," Mitchell said, "to the point where we only sent down a team of six. The officers went down, very guarded, and located the victim." 
  
 Mitchell said the teen was pronounced dead at the scene, and the body was airlifted out of the area. 
  
 "How do you respond as a parent when you hear news like that?" he said. "It's devastating. It's tough." 
  
 As family and the community mourn, for now, that bear continues to wander the trails, which remained closed as of Sunday night. 
  
 "Pray for that family," Weddleton said. 
  
 Author's note: This story has been edited to clarify that the teen was injured while descending the trail, not ascending it during the race. |||||
Output:
"This is the worst thing that could happen," says the director of an Alaska trail race that ended in tragedy Sunday. A 16-year-old participant was killed by a black bear while descending the Bird Ridge mountain trail. The Alaska Dispatch News reports the unidentified teen had made it to the turnaround point and was on his way back to the trailhead when a bear apparently began chasing him. He alerted his mother to his situation via text at 12:37pm local time, reports KTUU; KTVA adds that he also called his brother. A "very shaken" relative—it's unclear who—told race director Brad Precosky what was going on. A search started immediately, bolstered by searchers' ability to track the teen's phone, but was then thwarted. "The bear was remaining in the area where the young man was laying," says a park ranger. The roughly 250-pound bear was then shot in the face but fled; rangers are trying to track it down and kill it. As for the runner, his body was found about a quarter-mile off the trail in a very steep area heavily populated with trees. It's not known if the bear chased him there or if he arrived at the spot in some other way. The ranger says bears aren't often seen on Bird Ridge, but Precosky tells a different story. "I've been running in the mountains for 30 years"—this was the 29th year the race was held—and "people come down off the trail and say they've run into a bear. Sometimes that means nothing; other times, it's really serious. Like this." (This forest cop died after surprising a bear.)