Gilberto Cota Alanis is deputy prosecutor for Baja California state. He said Wednesday that Aguayo suffered three fractured vertebrae and was dead by the time he reached a hospital. Medical staff tried for 90 minutes to revive him.
The 35-year-old Aguayo was the son of retired wrestling legend Pedro "Perro" Aguayo.
He was hurt during a match in Tijuana early Saturday, apparently after a flying kick by another wrestler.
Video footage showed Aguayo hanging motionless from the ropes for about two minutes before receiving medical attention.