WARRENTON, MO. -- A Greentop woman facing a charge of second degree murder has pleaded guilty to the charge. 28-year old Angela Dawn Knowles pleaded guilty to the charge in Warren County Circuit Court, where the case had been moved on a change of venue from Knox County. 

Knowles admitted to her involvement in the death of Larry Callahan at his home in Knox City, Missouri. Knowles brother, Shane Roberts of Kirksville is awaiting trial on a charge of first degree murder in the case. Roberts is scheduled for trial beginning June 16 in Linn County Circuit Court, also on a change of venue from Knox County. 

Angela Knowles is set for sentencing on June 30 in Warren County.