One of the men accused of killing four people, including two children, in Troy in December of 2017 pleaded guilty Friday to four counts of second-degree.

Justin Mann admitted his role in the deaths of 22-year-old Brandi Mells, 36-year-old Shanta Myers, 11-year-old Jeremiah Myers, and 5-year-old Shanise Myers. 

All four of them were found murdered inside their 2nd Avenue home on December 26, 2017.

As part of the guilty plea, Mann will have to testify against James White, the other man charged in connection with the murders.

White's trial date is set for April 29.

As part of the plea deal, Mann will serve four sentences of 25 years-to-life in prison concurrently. A sentencing date has yet to be set.