PHILADELPHIA (CBS) – The Philadelphia Police Department released video and announced a reward in the purse-snatching murder in Northern Liberties.

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A $30,000 reward is offered for information leading to an arrest.

Police are continuing their investigation into the killing of Amber Long. The incident happened Sunday evening in front of her mother.

Capt. James Clark says the two suspects attacked the two women on the street.

Clarke says one man takes Stephanie Long’s purse and the other grabs the purse of her 26-year-old daughter.

According to police, Amber fought to keep her purse and the suspect fired a weapon.

Amber then fell to the ground and was later pronounced dead.

Clarke says, “I have been in homicide almost six years, I will tell you this, after watching the video, this one of the saddest videos and situations that I have seen and we have all our guys up there working day and night to try to bring these killers in and have them arrested.”

It all occurred on the 900 block of North Front Street.

Police believe the killers fled in a car, possibly a dark-colored Chevy, with a third person.

Police urge anyone with any information to call 9-1-1.