19-year-old arrested in grandfather's stabbing death

WEST MIFFLIN, Pa. (KDKA) - A 19-year-old man was arrested in connection with the stabbing death of his grandfather in West Mifflin earlier this week. 

A warrant was issued for Robert Anger of Homestead in the death of 65-year-old Marcel Thompson, police announced Thursday.

The Allegheny County Sheriff's Office said deputies later found him in Mon-View Heights.   

Thompson was found with multiple stab wounds outside an apartment building on Midway Drive on Tuesday. He was pronounced dead at the scene.  

Detectives said their investigation led them to Anger as a suspect. He's charged with criminal homicide, tampering with evidence and burglary.