Hall County police charged 38-year-old Stacey Morgan Schoeck. Hall County Sheriff's Col. Jeff Strickland says 36-year-old Reginald Coleman is charged with Richard Schoeck's murder.
Police also have charged 30-year-old Lynitra McKale Ross with party to the crime of murder.
Arrest warrants allege that Coleman shot Schoeck repeatedly at Belton Bridge Park near Lula.
Stacey Schoeck called 911 on Feb. 14 to report finding her husband outside his parked truck, dead of gunshot wounds.
A person who answered at a number listed for Stacey Schoeck said she was not available and hung up Tuesday. A number listed for Ross was disconnected and The Associated Press could not locate a number for Coleman.