The investigation is ongoing by Allegheny County authorities after a man was shot to death inside a car on Sharon Court, police said.
Officers arrived at the scene after they received an emergency call reporting a homicide in Penn Hills at about 9 p.m.
According to witnesses, the suspects were two young black men who were hiding inside a home on Frankstown road following their gruesome crime.
After they had permission from the homeowner, law enforcement broke into the residence and arrested three young men while the fourth who was hiding in the basement refused to comply. He then opened fire at a Penn Hills police officer who was then returned fire. The suspect died at the scene.