Anthony Eugene Stanford, 46, also received an additional two years for a felony firearms charge.
Police said Stanford walked into a precinct in March to turn himself in after his wife was found dead in their home on Bedford Street near Windsor. He told police he shot his wife, 36-year-old Lori, multiple times overnight killing her.
The couple's three children, ages 9 to 15, were home at the time of the shooting but didn't witness it, police said.
There was no record of any domestic violence at the couple's home prior the shooting.