The daylight attack happened at East 124th Street and Madison Avenue, according to the NYPD.
Devineil Brown, 27, was convicted of killing live-in boyfriend Shaun Woolford in 2012.
Police said a suspect stole a livery cab and stabbed the driver in Bed-Stuy in April.
James Sloane fatally shot Jose Feliciano at the Woodside Houses Friday night, police said.
A 24-year-old was charged with participating in an attack that killed a 23-year-old, police said.
One woman stabbed another in the ear after they exchanged punches in a Third Avenue 7-Eleven.
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.
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