Eric Knysz, the man who killed Michigan State Police Trooper Paul Butterfield has been declared clinically brain dead after hanging himself while in prison, according to WZZM-13.
Eric Knysz, the man convicted of killing Michigan State Police Trooper Paul K. Butterfield, is hospitalized in critical condition after attempting suicide in his Jackson prison cell, WZZM-13 reported Monday night.
A 20-year-old Irons man was sentenced this afternoon to life in prison for killing Michigan State Trooper Paul Butterfield during a September 2013 traffic stop.
Eric Knysz received a life term from Mason Circuit Court Judge Richard Cooper, The Ludington Daily News reported.