SCOTTSDALE, AZ - College women throughout the Valley are a little more nervous this weekend.
A convicted sex offender with an extensive history of sexually assaulting girls is on the loose.
Authorities are trying to track down the man, identified as Brian K. Downing.
Officers told ABC15 that police departments not just in Arizona, but across the country, have no idea where he is.
There are concerns Downing could show up at Scottsdale Community College or any of the many colleges around the Valley.
It's not believed police have a warrant for his arrest, but Downing has not checked in with authorities and his whereabouts are unknown.
In the past, police say Downing was found guilty of sexually assaulting three random women in Arizona.
He then moved to Oregon, where he sexually assaulted two more victims, including a 16-year-old girl.
Investigators say Downing's history of repeated sexual assaults makes him very dangerous.
He is not allowed on college campuses, and female students are wondering what more their schools can do to protect them.
"What can the school do to protect us, because we do get out pretty late here and it is pretty dark," wondered student Breeann Harger. "There are lights, but they obviously don't help."
Anyone with information on Downing is encouraged to contact police immediately.
Copyright 2012 Scripps Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
Did You Hear?
Jacqueline Simpson, 52, is suing the restaurant chain over a piece of glass she bit into while eating a chicken sandwich.
A man who was trying to protect his wife from a home run ball got a face full of beer for his effort.
Jim Heston, an American guesthouse operator in Cambodia, has lived a life in denim and has the photos to prove it. There were the dungarees he wore as a little boy, the dark bell-bottoms he had on for a hike up Japan's Mount Fuji, and the Levis straight-leg 501 jeans he's stayed with for the past 36 years.
More Scottsdale News
A Scottsdale restaurant planned to reopen Tuesday night after it temporarily shut its doors following an embarrassing reality TV experience.