Editor’s note: There has been some confusion about the relationship between the suspect and victim. This update contains the latest information from law enforcement.

ROSEMONT, Calif. (KTXL) — There was a large law enforcement presence Thursday in a Rosemont neighborhood after Sacramento County deputies said a man shot and killed his stepfather.

The Sacramento County Sheriff’s Office said the shooting took place near the intersection of Tallyho Drive and Henley Way intersection. The public was asked to avoid the area after deputies blocked off Tallyho Drive.

After 9 a.m. Thursday, deputies responded to a “frantic” 911 call from someone reporting that a family member had been shot inside their home on Avante Way, Sgt. Rod Grassmann of the Sacramento County’s Sheriff’s Office told FOX40.

Grassmann said the shooter left the residence but was later detained by deputies just a few blocks away.

He was later identified as the victim’s stepson, who is in his early 20s.

Detectives are currently investigating the incident as a homicide.

“I don’t know what the motive might be at this time,” Grassmann told FOX40. “There may be a mental health component to it. We’ll be looking at that and we’ll know more later on.”

After living in the neighborhood for three years, Ryan Copeland said he couldn’t believe what he was seeing in his quiet neighborhood when he woke up Thursday morning.

“Once they rolled out the crime tape, I thought, oh, there’s a little something more serious going on here,” Copeland told FOX40.

Copeland said he and his neighbors were shocked something like this had happened in their quiet neighborhood.

“I’ve done the neighborly driveby with a wave, but that’s about it. I’ve never spoken with the father or had any interaction with the kids or whoever lives there,” he explained.

At the moment, the sheriff’s office says they are still investigating the motive behind the deadly shooting.

“My understanding is that there may be a mental health component to it,” Sgt. Grassmann said.

While the sheriff’s office said it was an isolated incident, Copeland said he couldn’t help but feel for the family involved.

“My heart goes out to them, I am so sorry for their loss. This is a very sad incident, very tragic,” he said.