PALM BEACH COUNTY, Fla. — A Palm Beach County Sheriff's Office deputy shot and killed a suspect who had fatally stabbed his father with a sword early Saturday.
According to the Palm Beach County Sheriff's Office (PBSO), deputies responded to the 6400 block of Emerald Dunes Drive at around 3 a.m. for an armed domestic incident.
When deputies arrived at the home, they found Alonzo Riser, 20, stabbing his father, Tyrone Riser, 52, with a sword. After issuing commands for the suspect to drop the weapon, deputies said the suspect refused, prompting a deputy to shoot the son.
WATCH: Neighbors react to sword-stabbing incident in the Villas at Emerald Dunes community
Judith McCoy lives in the building across from where the incident happened and was stunned by the news.
"I cannot imagine a son attacking his father," McCoy said. "I'm shocked about it, very shocked and sad. It's sad, so sad."
Both the father and son, who lived at the complex, died from their injuries.

This is an ongoing investigation involving the PBSO Violent Crimes Division, the Palm Beach County State Attorney’s Office and the Florida Department of Law Enforcement.
PBSO said they placed the deputy involved the shooting on paid administrative leave per department policy.