An autopsy has been conducted on a man who officials say killed his neighbor in rural Pennsylvania before unleashing a hail of gunfire on first responders.

Both troopers were in stable condition, according to state police. An EMT was injured and two people were killed during the incident.

When state troopers Joseph Perechinsky and William Jenkins were tasked Thursday morning with checking on a call of shots fired at a home in rural northeastern Pennsylvania, they had no idea about the danger they were driving toward.