[Daily News] A threesome in Park Slope spiraled into a deadly attack with bats and knives after one of the participants began filming the sexcapade, police sources said.The Brooklyn bloodshed left Manos Ikonomidis, 20, dead of three stab wounds in the chest and back. He collapsed on the first floor of a building at 16th St. and Seventh Ave. just after 4 a.m. Monday. Earlier, he’d been locked in a steamy romp with an unidentified woman and 21-year-old Jack Doherty.
"It’s something out of a horror movie," stunned building resident Carol Petersen, 37, said. "It’s horrible. It’s a nightmare."
Doherty was being questioned by police, but was not a suspect in the slaying, sources said.