A neighbor of the mass shooting suspect thinks the man, James Holmes, may have tried to lure someone into his booby-trapped apartment to create a diversion during the shooting spree.The neighbor, Chris Rodriguez, told 7NEWS, he and his girlfriend started hearing loud techno music coming from above them at midnight."Usually the complex is very quiet, nobody has parties, so that was the first time we actually had a party or a lot of noise at the complex," said Rodriguez.After about 15 minutes, Rodriguez's girlfriend decided to knock on the door and ask them to turn the music down."She went upstairs to the apartment, and she knocked on the door pretty hard, she knocked two or three times and yelled into the door, 'Hey, can you turn that music down, we are trying to sleep,'" said Rodriguez.Rodriguez said that no one answered and his girlfriend didn't even hear any footsteps.While she was listening at the door, she noticed that the door moved."The door moved a little bit, and the handle jiggled a little, and she was contemplating going into the apartment, but something told her don't do it," Rodriguez said.Rodriguez said his girlfriend then went back to their apartment and called police.Officers said they would try to send an officer out, but they weren't sure if they had anyone.After 20 to 30 minutes, the music continued, so they called the non-emergency number for Aurora Police again."The dispatcher said, 'We're in a crisis right now, we really can't have any officers out at the moment,'" Rodriguez said.At the time, Rodriguez didn't know about the mall shooting.The couple went back to bed and the music stopped at 1 a.m.At 2 a.m., Rodriquez said he heard a loud crash, then a knock on the door."It's the SWAT team there in full armor," Rodriguez said.Officers escorted the couple and others out of the building."My theory is that what he did is he started the music up around midnight so somebody would go up to the apartment and open that door around 12:15," said Rodriquez.