ST. PETERSBURG, Fla. — Spectrum Bay News 9 obtained surveillance video from a gas station that captured part of a high speed crash in St. Petersburg on Wednesday that killed a 70-year-old pedestrian.

Anthony Seafus, 19, jailed after Wednesday crash

Margaret Waller, 70, was hit and killed

Incident started with a fender bender in St. Petersburg

The driver, Anthony Seafus, 19, was arrested on vehicular homicide and leaving the scene of a crash involving property damage charges.

According to an arrest report, the incident began with a fender bender at 49th Street and Central Avenue at about 3:50 p.m. Police said Seafus was driving a black Mercedes sedan when he struck the rear of a black Chrysler SUV driven by a 52-year-old woman and took off at a high rate of speed.

Seafus drove westbound on Central Avenue at between 80-to-100 mph when he ran a red light and was struck by a silver Hyundai Sonata that was travelling southbound on 58th Street, according to police. Detectives said Seafus' car continued through the intersection where he struck and killed Margaret Waller, 70, who was walking northbound in the crosswalk.

Seafus' car can be seen on surveillance video spinning out of control before it hits a tree and parked car. Exxon employee Chowdhdry Ali said he was working at the gas station when that crash happened.

"All of a sudden I heard the bang," he said. "The thing happened so quick that I couldn't see truly what happened."

At Seafus' first appearance in court on Thursday, a Pinellas prosecutor told Judge Pat Siracusa that Waller's body was knocked 50 yards into a ditch area and the woman's injuries were extreme. The prosecutor also said that the only record that Seafus has is a traffic ticket from April for driving 30 mph over the speed limit.

Seafus' mom, Quiana Middleton, also showed up in court and told Judge Siracusa that her son was being followed by the woman in the SUV.

"He was being chased from the first accident," she said. "When I got to the scene and there's a whole bunch of witnesses … the lady was saying that she chased him because he fender-bendered her."

A St. Petersburg Police spokeswoman said because the investigation is still active she can't release any more information about the deadly crash.

Seafus is being held in the Pinellas Jail on a $100,000 bond.