Bullets rang out shortly before 2 p.m. Sunday along East 182nd Street on the western edge of the zoo, near the back of the gorilla forest.
Police have not released the victim's name, but say he was 29 years old.
The suspect was believed to be wearing a yellow coat.
There is no word yet on a motive for the shooting.
ALSO READ: Widow of fruit vendor brutally murdered in the Bronx wants justice
Beating death of Bronx fruit vendor leaves widow searching for justice
----------
* More Bronx news
* Send us a news tip
* Download the abc7NY app for breaking news alerts
* Follow us on YouTube
Submit a tip or story idea to Eyewitness News
Have a breaking news tip or an idea for a story we should cover? Send it to Eyewitness News using the form below. If attaching a video or photo, terms of use apply.