Plea deal entered for mother of man convicted of killing Michigan State Trooper

The mother of Eric Knysz has plead no contest.

The mother of Eric Knysz, the man convicted of killing Michigan State Trooper Paul Butterfield, is offering to plea to an accessory charge.

Tammi Lynne Spofford pleaded no contest in Mason County Circuit Court on Tuesday to accessory after the fact of a felony.

Spofford is accused of helping Eric Knysz and his wife Sarah Knysz after the fatal shooting of Trooper Butterfield last year.

Spofford's no contest plea does not admit guilt, but it will be treated as one when she is sentenced.

The sentencing is expected on June 17th.

Eric Knysz hanged himself last month while in a detention center. He had been convicted of killing Trooper Butterfield and was sentenced to life in prison. His wife is currently serving her sentence of 2 to 5 years in prison for accessory after the fact.