PORT ST. LUCIE, Fla. (CBS12) — A family tragedy unfolded in Port St. Lucie on Wednesday morning, as a father was fatally shot by his own son during a heated argument, prompting a manhunt for the fleeing son and his capture in Broward County.

According to the Port St. Lucie Police Department, at around 7:47 a.m., officers responded to a report of a shooting at a home located in the 5900 block of NW Ketona Circle.

Upon arrival, the officers reported finding 69-year-old Glen Morrison inside the home suffering from a gunshot wound; he was pronounced dead at the scene.

Authorities said that their preliminary investigations suggest that the victim’s son, Sheldon Brian Morrison, 41, shot him and then fled the scene in a gold or beige Cadillac. The suspect was described as Black, standing 5-foot-7, and wearing black pants, black sneakers, and a black sweatshirt.

Police believe a disagreement occurred between the father and son, then Sheldon Morrison went into the garage, grabbed his gun, and shot his father, to which Glenn’s wife called the police.

Chief Leo Niemcyk speaks to Morrison’s state of mind after the incident.

“It’s hard to say. You know, I have to presume that he’s dangerous. You just shot and killed his father and fled the scene. Believed to be armed. So I can’t state, his state of mind, right? It’s obviously not normal today,” said Niemczyk.

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Mitchel Oxendine, who lives across the street from the Morrison’s, recounts his first reaction to the incident.

“She gets up and runs back to the front door and started barking and growling and barking and growling. So I said what’s going on? So I came to the door and look down and it must have been about eight police cars out here,” Oxendine said.

The investigation is ongoing, and further updates will be provided as new information becomes available, ensuring it does not compromise the integrity of the case.

A nearby charter school, Somerset College Preparatory Academy, was briefly placed on a modified lockdown following the shooting turned search. As the school updated families, their final update stated that PSLPD confirmed to school officials that the suspect they’re looking for was spotted outside of St. Lucie County.

PSLPD provided an update at 1:30 p.m. stating that Morrison was taken into custody without incident in Hollywood, Florida.

“I was surprised because, like I said, they were quite a quiet family, you know, no commotion over there. Never heard anybody yelling and screaming, or very seldom heard the dog barking,” said Oxendine.

Anyone with information about the shooting is encouraged to contact the Port St. Lucie Police Department at 772-871-5000.