Investigators found no evidence of bullying at IS 117, but said suspect may have been hassled elsewhere.
Brian Helfer stabbed his wife Ana Helfer in the torso before jumping off the bridge, police said.
Lovelt Valentin, 23, was killed Saturday on Utica Avenue, according to police.
The victim was found stabbed in the neck on Elder and Westchester avenues.
Advocates and relatives of murder victim Tanaya Copeland, 18, want to see charges in her death.
Daniel St. Hubert was arraigned on murder charges Wednesday after being indicted by a grand jury.
Police believe Copeland, 18, was the first victim of accused child killer Daniel St. Hubert.
Wade Wilson, 17, was charged with the stabbing death of Josais Masson, 18.
Residents said not enough was done to keep Richard Pearson, 49, off the streets.
Police said the injured man, Andrew Hardy, is not cooperating with investigators.
A 34-year-old man was stabbed twice in the abdomen and slashed in the face, the NYPD said.
The man was stabbed during a fight on Sutphin Boulevard Tuesday morning, sources said.
Another two people were hurt in the attack, police said.
A 14-year-old girl who was suspended from the Richard Green School was stabbed twice Monday, NYPD says.
Richard Pearson, 49, was charged with attempted murder in the attack on a cellphone accessory vendor.
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