A Beaver Dam man has been convicted of killing his ex-wife. Ulisses Medina Espinosa has pleaded guilty to first degree intentional homicide in the shooting death of Stacia Hollinshead in his parents’ home March 23. An autopsy shows the victim was shot 15 times, including three times in the head. A five-year-old child witnessed the murder and provided extensive details to police about the shooting. A sentencing hearing is scheduled for April 5.