A brief cell phone video shows a New York City police officer use pepper spray on a man and his sister after they complained the cop had taken more than $1,000 during a stop-and-frisk search.

Lamard Joye was stopped by police Sept. 16 in Coney Island after confronting officers who roughed up a young man nearby, said the man's attorney.

"Is that necessary?" Joye and some friends asked police, according to the attorney....