The man, identified as Doug Solomon, was found dead in a courtyard behind the co-op at 180 E. 79th St. around 10:30 a.m., police told the New York Post.
A police spokesperson told the Post that his 65-year-old mother, Diane Gallagher, was found in a bedroom, with fatal trauma to her head.
Solomon was the son of retired New York Supreme Court judge Charles Solomon who left the role in 2017 after three decades on the bench. Gallagher was Charles’ wife.
Residents called 911 seeing Solomon either jump or fall into the courtyard allegedly screaming on the way down from, law enforcement sources told the outlet.
A man, who declined to share his name, told the Post he heard “the loudest thud” and “thought it was an air conditioning unit” at first.
“There was workers right across outside my window, I was yelling to them ‘is it an AC unit?’ They’re saying ‘no a guy just jumped down,'” he said.
Police were investigating the incident as an apparent murder-suicide. The medical examiner will determine the cause of death.