HOBOKEN, N.J. - Residents were concerned and confused Friday when they returned to their quiet Hoboken neighborhood to find police tape and countless officers.

Hoboken resident Ryan Lanza, 24, is the older brother of Adam Lanza, who is suspected to have killed 26 students and adults at a Connecticut elementary school Friday.

Ryan Lanza, who was identified in early news reports as the shooter, took to social media to combat the rumor. He quickly allowed authorities to enter his apartment in North Hoboken.

Witnesses say the older Lanza was escorted by authorities from his second floor apartment into an unmarked vehicle, and taken to an undisclosed location for questioning. His two roommates also were allegedly taken in for questioning.

The bomb squad was summoned as a precaution to ensure the apartment was not booby trapped with explosives, according to authorities at the scene.

Confusion reigned in the Garden State after a television report named Ryan Lanza as the suspected shooter and indicated he lived in New Jersey. A Google search turned up two New Jersey residents with that name, and it was likely a popular search on computers around the country.

The virtual hunt was intense enough that the Camden County Prosecutor's Office felt compelled to issue a statement that the other state resident with the same name also had no connection to the shooting.

Residents of the building were escorted by local officers in and out of the front door to the building. Armed with minimal information, parents who were walking through the area were shocked to hear the shooter could have been in the neighborhood just days before.

"Just to think that he could have walked a block down to the nursery school my child goes to," said Jason Castelluccio. The visibly shaken parent who lives across the street from Lanza worried for the safety of his 17-month-old son. "With Sandy and now this, we've been through enough in Hoboken," he said.

Local authorities kept onlookers and the media at bay, while FBI agents walked in and out of the front door to the five-story apartment building. The roped off area, which initially covered a two-block radius, was brought down and authorities put up police tape at the front entrance to the building toward the conclusion of the investigation Friday evening. A officer stood guard to ensure the safety of the residents who lived there.

"It's scary and it is sad," said Hoboken resident Laurie Petersen, who stood among the pool of reporters and looked on as officials continued their five-hour investigation. "It is time to do something about the gun violence."

As the sun set and street lights began to shine brightly on the urban street, two FBI agents were seen carrying a personal computer tower out of the apartment building and placing it into to the back seat of a black sedan, which was driven away immediately.