Friend says Calif quarry suspect showed off AK-47

By BETH DUFF-BROWN and TERRY COLLINS | October 6, 2011 | 5:30 PM EDT

Sheriff's deputies escort a woman and baby out of a house before they enter the home in Sunnyvale, Calif., where a man matching the description of suspected gunman Shareef Allman was found and shot dead by law enforcement officers on Thursday, Oct. 6, 2011. Shareef was the focus of a huge manhunt after an alleged shooting at a Cupertino cement plant early Wednesday morning where three people were killed and seven wounded. (AP Photo/San Jose Mercury News, Gary Reyes)

SUNNYVALE, Calif. (AP) — A close friend of the employee accused in a deadly California quarry shooting says the suspect showed off an assault rifle over the weekend and said he would use it at work.

Twenty-year-old Brandon Powell tells The Associated Press that Shareef Allman visited him Saturday at his Sacramento home and showed him a newly purchased AK-47.

When Powell asked what the gun was for, Allman said there were racist people at work who were "messing" with him, then laughed.

Powell says he thought Allman was joking. Many of Allman's friends have described him as a devoted father and community volunteer never known to be violent.

Authorities say Allman fatally shot three co-workers and wounded six others Wednesday during a work meeting in Cupertino.

They haven't discussed a specific motive, other than to say the suspect was disgruntled.