Donte Hobson, 32, pleaded guilty to conspiracy to commit robbery and unlawful possession of a firearm by a convicted felon.

Three other suspects recently accepted plea deals in the Hovey Street slayings. One of those -- Ronald Davis -- will be sentenced on Wednesday. His guilty plea to four counts of murder allowed him to avoid the death penalty.

A fifth suspect, Jasper Frazier, is awaiting trial.

Andrea Yarrell and Gina Hunt, both 24, and their children, Charlii Yarrell, 5 months, and Jordan Hunt, 23 months, were killed.