(WLNS) - 6 News has learned that Eric Knysz tried to hang himself Monday.
Knysz is currently in prison, convicted of the murder of Trooper Paul Butterfield.
According to our sister station, 9&10 News Knysz is on life support.
More from 6 News: Trooper Shooter Sentenced To Life In Prison
2820 East Saginaw Street, Lansing, MI 48912