A man and a woman were shot dead Saturday morning in the Key Peninsula in a dispute over "guns and/or drugs," said Pierce County Sheriff's Department spokesperson Ed Troyer.

Deputies responded just before 3 a.m. to a 911 call about shots fired in the Longbranch area of the Key Peninsula. The caller reported two people had been shot and a known suspect had fled the property.

Deputies en route to the scene located the 27-year-old known suspect walking along Whiteman Road and placed him in custody.

"The person who did the shooting called and turned himself in," said Troyer. "We picked him up in the woods just a short distance away."

Once they arrived, deputies found the bodies of a husband and wife - a 35-year-old man and a 24-year-old woman - in the driveway at a mobile home in the 5500 block of Whiteman Road. Multiple weapons were also recovered at the scene.

"It appears this may be in retaliation for a previous domestic violence incident that occurred some time back. And we also believe that guns and/or drugs are involved," said Troyer. "It appears everyone knew each other through family relationships."

Pierce County Sheriff's detectives are investigating a double homicide in Longbranch area of Key Peninsula; a 27-year-old suspect is in custody. (Photo: Pierce County Sheriff's Dept.)

Deputies also found the victims' 2-year-old son in the back seat of the vehicle the victims drove to the scene. He was uninjured and has been placed with a relative who does not live at the location, said Troyer.

The 27-year-old suspect was booked into the Pierce County Jail for two counts of Murder in the 2nd degree. Deputies were not currently looking for any additional suspects.

Pierce County Sheriff's detectives are investigating a double homicide in Longbranch area of Key Peninsula; a 27-year-old suspect is in custody. (Photo: Pierce County Sheriff's Dept.)