(WPXI) – Hundreds of first responders joined family and friends Friday for the funeral and procession for the Rostraver Township paramedic who was hit and killed Sunday while responding to a crash on Interstate 70. Forty-three-year-old Matthew Smelser, of Carroll Township, was killed about 5:30 a.m. Sunday when he got out of an ambulance on I-70 to help a crash victim. He was hit by a passing truck. Smelser, a father of two young children, worked at the Rostraver Ambulance Service for 24 years and was a supervisor for 20 years. Pennsylvania State Police said icy roads might have been a factor in the deadly accident. Gov. Tom Wolf ordered commonwealth flags to be flown at half-staff in Smelser’s memory, saying his death is a tragic reminder of the risks taken by emergency personnel each day.