The girlfriend of the man accused of killing a suburban Pittsburgh police officer is now facing charges.

Police say Kashawna Jackson provided a false alibi for 32-year-old Ronald Robinson by saying they were together at the time of the fatal shooting.

Authorities say Robinson killed Penn Hills police officer Michael Crawshaw on Sunday after leaving a house where he also shot and killed Danyal Morton over a $500 drug debt.

A Western Pennsylvania judge has cleared a former Pittsburgh-area high school student of harassment for wearing a T-shirt with the words "Not Guilty."The Allegheny County judge ruled that the shirt represents free speech protected by the First Amendment.David Hood was a Penn Hills High School student last spring when he argued with a girl about prom expenses. Police ended up charging him with harassment.A local judge said he would dismiss the charge if Hood stayed away from the girl. But the next day, Hood and three friends wore the "Not Guilty" T-shirts to school. All four were cited for harassment and found guilty.