NEW YORK (CBSNewYork) — A man believed to have stabbed his former girlfriend and her stepson at their Queens home reportedly jumped in front of a Long Island Rail Road train Tuesday morning and killed himself just hours after the attacks.

Police said the 43-year-old woman was stabbed in the neck, reportedly by her ex-boyfriend, on 56th Street in Maspeth shortly after 6 a.m. She was rushed to Wyckoff Hospital, where she is in critical condition.

Authorities also said a 22-year-old male relative of the victim — believed to be her stepson — was also stabbed outside the home. He was taken to Elmhurst Hospital with non-life threatening injuries.

Neighbor Willie Samija told 1010 WINS’ Carol D’Auria that the suspect — who has not been named — jumped in front of a train, but the medical examiner must still make a positive identification.  He also added that he had warned the victim to be careful on previous occasions.

“I see all the time that he get drunk and drug-addict little bit.  You know, they start into fighting — this is it.  Then I told her a couple times, I said ‘listen, you better stop this kind of relationship because you’re gonna [end up] dead,” a neighbor told 1010 WINS’ Carol D’Auria.

That neighbor said he was told “mind your own business” after giving the victim that advice.

“As soon as he came out of the jail for the first time, he broke her leg. He came out of the jail, I told her ‘listen, he’s coming back to your place again,’ I say ‘it’s not gonna stop right there.’  You know — it happens once, it’s gonna happen a couple times,” Samija said.

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