Shaun Paul Runyon killed his coworkers inside the rental house they shared in Davenport, in central Florida, according to an affidavit from the Polk County Sheriff’s Office.
CNN has been unable to determine whether Runyon has obtained legal counsel.
Runyon, who is temporarily in Florida as a contract electrician for Pennsylvania-based company J&B Electric, was involved in a physical altercation with a coworker at a job site Friday, the affidavit says.
Runyon left the worksite and drove to Tampa International Airport, about 70 miles to the west, where he parked his work vehicle, rented a car and drove to a Target store to buy a baseball bat, detectives said.
On Saturday morning, he returned to the rental home, where Judd said seven people were staying, “armed with the baseball bat and a small knife which was a personal knife he owned,” according to the affidavit.
Runyon told deputies he went into the bedroom of the coworker with whom he fought Friday and beat him “until he saw ‘brain matter,'” the affidavit says.
The victim was still alive when authorities arrived. He was airlifted to a local hospital but later died, the affidavit says.
After attacking the first victim, the affidavit says, Runyon entered another bedroom and beat a second coworker to death. He then went into a third bedroom and stabbed another person to death after missing him with his baseball bat, according to the affidavit.
Runyon chased another coworker out of the house but was able only to strike him in the shoulder and back, Judd said, adding that a couple and their child were also able to escape the house unharmed.
“We have no idea what outraged him so bad that more than 24 hours later, that he would come back and make an attempt to kill every one of them,” Judd said.
“It’s safe. The murderer, the horrible murderer, is in custody and the community is once again safe.”