BROOKLYN — A man jumped to his death from his Brighton Beach apartment building after fatally stabbing his father and critically wounding his sister, sources said.
The family had been embroiled in an argument at their first-floor apartment on Ocean View Avenue, near Brighton 12th Street, about 2:30 a.m. Tuesday when Kostyantyn Proskurnyak, 30, flew into a rage and plunged a blade into the neck of his father Voclodymyr Yeushchenko, 59, sources said.
Yeushchenko, who neighbors said always kept his apartment door open and adored his cat, was pronounced dead at the scene, according to the NYPD.
Victim's daughter, 29, tried to intervene, but was stabbed in her face, back and wrist, sources said. She managed to flee the house, staggering about three blocks until she reached Brighton Beach Avenue and Coney Island Avenue where she collapsed, sources said.
She was critically wounded but stable at Lutheran hospital, sources said.
As she escaped the apartment building, Proskurnyak leaped from a second-floor window of the four-story apartment building, police said.
He was pronounced dead at Coney Island Hospital, police said.
There had been a single prior domestic incident report at the apartment in 2007 during which Proskurnyak assaulted his father, police said.
Neighbors said that Yeushchenko may have been the man's stepfather, but NYPD officials could not confirm that account.
Yeushchenko could be spotted riding around on his bike or lavishing attention on this cat, neighbors said.
"He'd always say, 'Hi, how you doing?'" said Zulfiya Neary, 62, who lives above him.
"His door was always open and his heart was always open," Neary added.
