A Harford County sheriff's deputy fatally shot a 19-year-old Bel Air man late Saturday night on the parking lot of the BP gas station in the Rock Spring area just north of Bel Air, police said.

The victim has been identified as Seth Jacob Beckman, of the 1000 block of Peppard Drive. He was flown following the shooting to the Maryland Shock Trauma Center in Baltimore, where he died at 1:10 a.m. Sunday, the Harford County Sheriff's Office said.

It was unclear what specifically led the deputy to shoot Beckman, but Sheriff's Office spokesman Edward Hopkins said he was seen allegedly being disorderly and disruptive in the hour leading up to the shooting.

Video surveillance the Sheriff's Office has obtained has shown Beckman was "acting irrationally," Hopkins said Monday.

"His behavior was just erratic," he said.

Meanwhile, the victim's father said Sunday afternoon that his son had battled depression but his actions, as described by police, were out of character.

"A number of events" began shortly after 10 p.m. Saturday, when a disorderly person was reported in front of Planet Fitness in the Rock Spring Village Shopping Center off Route 24, according to Hopkins, who later said Beckman was damaging a sign at the business.

A short time later, the same man was reported allegedly being disorderly and disruptive inside the Bynum Road 7-Eleven.

A later news release from the sheriff's office said Beckman was "tearing up the store," and on his way out he allegedly assaulted a customer. Hopkins said Beckman knew the man, who said "hello," and Beckman allegedly punched him once in the face.

And shortly afterward, Hopkins said, a break-in was reported at Sharon's Shaved Ice, the snowball stand that's on the parking lot of the BP gas station at the intersection of Red Pump Road and Rock Spring Road (Route 24) just north of the Bel Air Bypass.

'Activity' inside building

When a sheriff's deputy pulled up to the scene at 10:43 p.m., he saw there was "activity" in the building, Hopkins said. The deputy saw someone moving and heard some noises.

The man came out and the deputy, because he was investigating a break-in, had his gun drawn, Hopkins said. Witnesses said the deputy ordered Beckman to come out and when he did an altercation ensued between the deputy and the suspect, during which Beckman was shot and wounded.

The deputy fired his gun at 10:44 p.m. and hit the suspect, Hopkins said.

"We don't know why the deputy fired," Hopkins said Saturday night.

Hopkins also said that between the time the was inside the 7-Eleven and the shooting, the same man went inside the store at the BP, where he was also allegedly loud and disorderly and "tearing it up as well."

"His behavior was overt and aggressive," Hopkins said.

Police rendered emergency medical care until paramedics from the Bel Air Volunteer Fire Company arrived. They treated him and took Beckman by ambulance to Red Pump Elementary School, according to the Harford County Fire & EMS Association's media Facebook page. He was then flown to by State Police Medevac to the Maryland Shock Trauma Center in Baltimore.

Hopkins said Sunday afternoon that Beckman's body was taken to the Office of the Chief Medical Examiner for an autopsy.

The name of the deputy involved in the shooting had not been released as of Sunday evening. He was interviewed at the Northern Precinct station in Jarrettsville following the shooting, according to Hopkins.