HINCKLEY TOWNSHIP, Ohio -- A Hinckley Township man pleaded not guilty in the shooting deaths of his brother and sister.

Dean Simms, 42, is facing murder charges in the Feb. 5 shooting on Babcock Road near West 130th Street.

Cynthia Gesaman, 52, and Randy Szychowicz, 45, suffered gunshot wounds to the head and were pronounced dead at the scene, officials said.

Simms entered his plea during his arraignment Monday in Medina County Common Pleas Court, according to court records.

A jury trial is scheduled April 18.

A Medina County grand jury indicted Simms on Feb. 10. He is charged with one count of aggravated murder and two counts of murder in each death, but can only be sentenced on one charge in each death if he's convicted, the Medina County Posecutor's Office said.

Simms is being held at Medina County Jail on $10 million bond.

Simms, Gesaman and Szychowicz were living together at the house. No one else was there when the shooting occurred, Hinckley Police Chief Tim Kalavsky said earlier this month.

Simms offered harrowing details of the shooting during a candid phone conversation with a 911 dispatcher.

Simms told the dispatcher he shot his siblings due to a "lifelong of headache," according to a recording of the call released by he Hinckley Police Department.

"I guess I'm going to be going away for life," he said during the call.

Simms' criminal history includes previous convictions for drunken driving and traffic violations.