An officer points his firearm at Marco Stephenson during an April 2016 arrest. (KDFW-TV)

Almost a year before a Balch Springs police officer shot and killed an unarmed 15-year-old, a sergeant repeatedly used a Taser on a handcuffed man, recently revealed body-camera footage shows.

Two weeks after a now-fired Balch Springs police officer shot and killed a 15-year old boy, the police chief is investigating who leaked video of another incident involving his officers. The leaked body cam video is from an April 28, 2016 incident that shows a white Balch Springs officer using a taser on a handcuffed black man. Balch Springs officials said the sergeant who used the stun gun had been reprimanded but was not charged.

“Don’t pull away, do you understand? You understand? Don’t pull away,” the officer can be heard demanding, following what appeared to be a calm apprehension prior to the stun gun use.

A Balch Springs police officer fatally shot 15-year-old Jordan Edwards in April.
A Balch Springs police officer fatally shot 15-year-old Jordan Edwards in April.

The video was mailed to FOX 4 after the shooting death of Jordan Edwards, which is a separate and unrelated investigation. The original source of the leaked video or where else it’s been distributed is unclear.

Attorneys for the family of Jordan Edwards have said they want investigators to take a close look at the racial makeup of the department and possible targeting of minorities for stops and citations.