New York
Criminal Court Judge Robert Rosenthal
New York City Criminal Court (Manhattan)

- Case on record
- 1
- Ended in a killing
- 1
- Prior arrests across these defendants
- 33
Background
Brooklyn criminal court judge. Released David Mazariegos on his own recognizance at a July 2025 hearing after prosecutors downgraded felony charges to misdemeanors. At that hearing Rosenthal said 'the severity of these is increasing over time' in reference to Mazariegos's rap sheet. Months later Mazariegos beat Brooklyn security guard Nicola Tanzi to death at the Jay Street-MetroTech subway station.
Cases on record
89
days after release
Murder in Brooklyn, New York
Nicola Tanzi, 64
Released July 10, 2025. Terms: Released on own recognizance (after charges downgraded).
Tanzi held a door for Mazariegos at the Jay Street-MetroTech station. Mazariegos turned and punched, kicked, and stomped on Tanzi's head 15 times, killing him on camera. He fled with Tanzi's credit cards. NYPD arrested him hours later in Times Square carrying a samurai sword. He has confessed to the killing.