Detroit Free Press: Former U-M student gets 20-60 years in killing of mentally ill mother
Police said Pyne, 23, beat and stabbed 51-year-old Ruth Pyne in the garage of the family's Highland Township home in May 2011. Prosecutors said Jeffrey Pyne was angry about his mother's mental illness.
Pyne again pleaded his innocence at the sentencing hearing, according to the Free Press, and asked for leniency. His father read a letter from Pyne's younger sister during the hearing, asking for her brother to come home soon.