SACRAMENTO -- A sexual predator is behind bars after pleading to several sex assault charges.

In 2009, Anthony Martin sexually assaulted several children and a woman by grabbing them from behind. This occurred multiple times in Sacramento and Placer counties.

Martin was not identified until Sacramento Sheriff’s detectives and other investigative agencies compared similarities in the cases.

Martin had a history of similar sex assaults in Oregon. He faces up to 21 years in prison when he is sentenced on October 25.