Drew Peterson charged with plotting to kill prosecutor who won conviction in ex-wife's death

FILE - In this May 8, 2009 file photo, former Bolingbrook, Ill., police sergeant Drew Peterson arrives at the Will County Courthouse in Joliet, Ill., for his arraignment on charges of first-degree murder in the 2004 death of his third wife. State and local prosecutors said Monday, Feb. 9, 2015, that Peterson has been charged with solicitation of murder for hire and solicitation for murder after allegedly trying to hire someone to kill Will County State's Attorney James Glasgow, the prosecutor who led the 2012 trial that resulted in the former police officer being convicted of killing his third wife. (AP Photo/M. Spencer Green, File) (The Associated Press)

FILE - In this Feb. 21, 2013 file photo, Will County State's Attorney James Glasgow talks to reporters in Joliet, Ill., after a judge rejected a defense retrial motion for Drew Peterson and then sentenced Peterson to 38 years in prison for the 2004 murder of his third wife Kathleen Savio. State and local prosecutors said Monday, Feb. 9, 2015, that Peterson is charged with solicitation of murder for hire and solicitation for murder after allegedly trying to hire someone to kill Glasgow while Peterson was in prison. (AP Photo/Charles Rex Arbogast, File) (The Associated Press)

This undated photo provided by the Illinois Department of Corrections shows Drew Peterson who has been charged with trying to hire someone to kill the prosecutor who convicted Peterson of killing his third wife. State and local prosecutors said Monday, Feb. 9, 2015, that Peterson is charged with solicitation of murder for hire and solicitation for murder after allegedly trying to hire someone to kill Will County State's Attorney James Glasgow, while Peterson was in prison. (AP Photo/Illinois Department of Corrections) (The Associated Press)

Drew Peterson has been charged with trying to hire someone to kill the prosecutor who led the 2012 trial that resulted in the former police officer being convicted of killing his third wife.

State and local prosecutors said Monday that Peterson is charged with solicitation of murder for hire and solicitation for murder after allegedly trying to hire someone to kill Will County State's Attorney James Glasgow while Peterson was in prison.

The 61-year-old is serving a 38-year prison sentence after being convicted in the 2004 drowning death of Kathleen Savio.

An investigation into Savio's death was reopened after Peterson's fourth wife, Stacy, disappeared in 2007. Authorities have said they believe Stacy Peterson is dead and that Drew Peterson is a suspect, but he hasn't been charged in that case.