An Elkhart man arrested this week in the stabbing death of a coworker in Cass County has been arraigned on a charge of open murder. The Cass County Prosecutor’s office says 23-year-old William Henderson was denied bond at Thursday’s hearing in district court. Police arrested Henderson early Wednesday after he allegedly stabbed a co-worker in the neck during a fight at the Ameri-Kart factory in Mason Township. The victim has been identified as 23-year-old Jan Mendez, of Elkhart. Henderson could get life in prison if convicted.