NYPD arrest 19-year-old in connection to Crown Height assault

The NYPD made an arrest in a Brooklyn robbery that took place earlier in July.
Police arrested 19-year-old Derrel Cooper in connection to the Crown Heights robbery.
Officers say four men approached the victim near his car and attacked him in front of his 5-year-old son. The suspects took $100 and fled after, according to police.
The other three suspects are still on the loose.