TUCSON - Police are investigating hundreds of leads regarding the disppearance of Isabel Celis, but one business in the area may have a big key to help solve the puzzle.

Rick Moore of Moore Security Solutions has surveillance cameras placed right outside his company--a company that is just feet away from Isabel Celis' family home.

Rick Moore said his cameras were on the watch the night Isabel disappeared.

"And the cameras that we have located in the back were looking where a lot of things were happening," said Moore.

Moore said he believes these cameras provide more information to police than any other nearby camera because of their location.

"In terms of maybe license plate numbers, cars going by - these cameras also have infrared technology so you can see at nighttime and that will help too, since the abduction occurred between 11 and 8 o'clock," said Moore.

Moore said on Saturday, his general manager spent about five hours with police, showing them surveillance video of the area, and on Monday, they were back again to review video and get a copy of activity from 10 p.m. Friday night to 9 a.m. Saturday morning.

"There was activity going on," he said. "There were vehicles...there were people wandering around. There were things that we saw and we did get recorded so that information we did release to the police."

But police didn't just resort to businesses for information. They have been surveying neighborhoods within a three-mile radius of the Celis home.

"It's very sad. We've raised two girls in this house and we think it's a safe neighborhood but sometimes you need to reconsider what your original thoughts were," said Bob Kovitz, who lives in the three-mile radius.

A nearby business we spoke to tells us that Saturday morning, a boy was walking around asking people at some of the stores if they had seen little Isabel.

He was in tears, and they assumed he was Isabel's brother.