A 53-year-old Baton Rouge man was sentenced to life in prison Friday in the fatal shooting of his younger brother in the driveway of their parents’ Chateau Drive home two years ago.

Michael Hebert was convicted in March of second-degree murder in the June 15, 2013, slaying of Wayne Hebert Jr., 45, of Austin, Texas.

The younger Hebert was shot multiple times in the back following an argument with his brother, police said.

Michael Hebert told detectives he believed his brother was going to beat him up during the argument outside the family’s home, according to an affidavit of probable cause. The older Hebert admitted he never saw a weapon in his brother’s hands, the affidavit says.

Michael Hebert walked inside, retrieved a gun, went back outside and shot his brother, police stated.

State District Judge Richard Anderson imposed the mandatory sentence of life in prison.