(MCT) — What may be Drew Peterson's final two court hearings have been scheduled for February during which his bid for a new murder trial will be heard and prosecutors will present evidence he killed his missing fourth wife as they seek the maximum 60-year prison sentence.

The former Bolingbrook police sergeant, who appeared in court Thursday with a new buzz cut and the beginnings of a beard, was convicted last fall of drowning his third wife, Kathleen Savio, in 2004. He is the sole suspect in the 2007 disappearance of his fourth wife, Stacy.