A self-storage manager in Lansing, Mich., is a key witness in a murder trial in which a man is accused of killing a retired detective and his wife Sept. 22, then accessed his girlfriend's self-storage unit to store items stolen from the victims home.

Stacy Schneider, the resident manager of Allsafe Mini Storage, identified the defendant, Christopher Perrien, in court Tuesday. She told the court Perrien arrived at the self-storage facility just before 4 p.m. the day of the murders. Perrien paid the $168 in late rent and fees so he could access his girlfriend's storage unit.

Inside the unit, investigators found numerous items taken from the home of the victims, Michael and Terri Greene, including Greens Michigan State Police-issued handgun, badges,  and other personal affects. Police also recovered the gun allegedly used in the homicides. Investigators said the Greenes were killed between noon and 2:30 p.m. Each was shot multiple times.

Perrien faces two counts of felony murder and two gun charges. His next court appearance is Feb. 14.

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