LEBANON COUNTY – State Police are investigating a fatal two-vehicle crash in Lebanon County. It happened Monday around 8:20 p.m. along Route 501 near Mastle Road in Heidelberg Township. Authorities say 34-year-old Eric Martin of Myerstown was southbound on 501 and crossed into the northbound lane colliding head on with a vehicle driven by 50-year-old Arthur Matz of Myerstown. Matz and a passenger in his vehicle, 44-year-old Jody Matz, died at the scene. Martin was taken to Hershey Medical Center.