WASHINGTON - Police say the gunman who killed two people and himself in a shooting rampage at an Oregon mall was 22 years old and used a stolen rifle from someone he knew.
 
Clackamas County Sheriff Craig Roberts says that Jacob Tyler Roberts had armed himself with an AR-15 semiautomatic rifle and had several fully loaded magazines.
 
Roberts says the rifle jammed during the 22-year-old's attack, but he managed to get it working again.
 
The chief says authorities don't yet have a motive.

A law enforcement official has told The Associated Press the shooter did not have a criminal record. The official spoke on condition of anonymity because he was not authorized to discuss details of an ongoing criminal investigation.
 
Two people were killed, and another was wounded.

The two who died were identified as Steve Forsyth, 44 and Cindy Yuille, 54.