CAUGHT ON CAMERA:Surveillance video shows a masked man running behind a woman jogging

PHILADELPHIA, Pa. (CBS, KYMA) - Police in Philadelphia are searching for a suspect that was wearing a Chucky style mask and allegedly threatened and chased at least a half dozen people around Philadelphia City Hall last Wednesday.

Police say the masked man asked one woman if she was ready to die.

Investigators are searching for a suspect who ran up to people and making threats in a 15 minute span.

Philadelphia Police Department Capt. Jason Smith said the suspect is facing charges that include terroristic threats, simple assault and other offenses.

Officials say the threats started at around 5:18 a.m. Where the male suspect ran up to multiple people, attempting to scare and antagonize them.

Captain Smith said the suspect was holding a cellphone with the light on and appeared to film the incidents.

Smith said it's unclear if the encounters were part of a social media trend.