Cops want to question a 21-year-old in connection with one of the viral water bucket incidents that caused outrage among officers and politicians, authorities said Tuesday.

Darnell Hilliard, also known as Donnell Hillard, was identified by witnesses as one of the people throwing buckets of water on officers during the July 27 encounter at West 115th Street and St. Nicholas Avenue, according to the NYPD.

Cops previously identified ten suspects in the Harlem bucket incident and arrested two others.

Gov. Andrew Cuomo slammed the officers’ inaction Monday in another water dousing incident in Brownsville that was captured on camera from the same weekend.

Three men were previously busted for their alleged involvement in that incident.

The NYPD released a photo of Hilliard Tuesday morning.