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.

A 61-year-old man shot and killed his neighbor in rural Pennsylvania Thursday and then ambushed first responders, wounding two state troopers and causing an EMT to crash a vehicle while firing dozens of rounds from a semiautomatic weapon, police said. The attacker was later killed by police.