Police ruled the deaths a murder-suicide a day after discovering Benoit, his wife, Nancy, and their 7-year-old son, Daniel, dead in the family's suburban Atlanta home.
"We are looking at this case and ruling it as a double homicide-suicide," Lt. Tommy Pope of the Fayette County Sheriff's Office said during a press conference outside the Benoit house.
Pope, relying on preliminary autopsy results from the state crime lab, laid out a roughly 24-hour timeline that began Friday with the 40-year-old wrestler killing his wife in an upstairs family room.
Nancy Benoit was bound, had blood under her head and was wrapped in a towel, Pope said. Fayette Count District Attorney Scott Ballard described the state of her body -- face down on the hardwood floor -- as "the only sign of a struggle."
"Her hands were bound together, her feet were bound together and there was a little blood over her face," Ballard told ABC News in an interview after the press conference. "The medical examiner found bruising on the small of her back and bruising on the front of her body consistent with being crushed up against the floor."
Police said Benoit then asphyxiated their son early Saturday morning. The boy was found face down in his bed, and there were no handmarks on his neck, Ballard said.
Benoit killed himself in the basement either late Saturday or early Sunday. Ballard said the wrestler, listed as 5 feet 10 inches, and weighing 220 pounds, was found hanging by his neck from a weight machine.
"There was no type of suicide note within the house that we located," Pope said. There was also no sign of forced entry or evidence of any type of burglary attempt.