UPDATE: Marion County investigators say an acquaintance of a man is responsible for his death.

Authorities responded to a home on Chance Road in South Pittsburg Monday morning where they found 19-year-old Buford Reyna, Jr. dead.

Police arrested 21-year-old Kordell Griffin. He's being held in the Marion County jail without bond.

"Well, it's scary. You're afraid to lay down and go to sleep at night because everything is waking me up now," Susan Boren, a neighbor said.

A neighborhood that's usually filled with people in their yards was empty on this sunny day.

Susan Boren says that's because neighbors are worried.

"This neighborhood's been safe. We had this home built in 1983 and there's nothing like this that's been here before. It's like what I'm watching on TV is coming into my back door," Boren said.

After spending 13 hours at this blue home, authorities arrested Griffin who they said was an acquaintance of Reyna.

Griffin's grandmother was the one to call 9-1-1.

Griffin faces criminal homicide and possession of a weapon by a convicted felon charges.

As one family processes their son being behind bars, another is grieving their son's death.

"There's two sets of parents out there and it's breaking their heart in two," Boren said.

As neighbors learn about what happened, they hope this is an isolated incident.

"You never know what time this can go on now. We thought our neighborhood was safe, but now we don't know," Boren said.

Court records say Griffin pleaded guilty to theft in January of 2016. He's expected to be in court for these new charges later this month.

UPDATE:  Agents with the Tennessee Bureau of Investigation have arrested a South Pittsburg man, charging him with criminal homicide.

TBI Special Agents began investigating a homicide at a home in the 300 block of Chance Road in South Pittsburg Monday after a call came into Marion County dispatchers shortly after 5:00am that a man's body was found at that home. 

Officers with the South Pittsburg Police Department and Marion County Sheriff’s Department responded to the scene, and found the victim, Buford E. Reyna, Jr. dead. During the investigation, agents identified Griffin, an acquaintance of the victim, as the person responsible for his death.

On Monday night, Kordell D. Griffin was charged with one count of Criminal Homicide and one count of Possession of a Weapon by a Convicted Felon. 

He was booked into the Marion County Jail, where he is currently being held without bond.

PREVIOUS STORY: A death investigation is underway by the TBI, Marion County Sheriff’s Office, and South Pittsburg Police Department after a man’s body was found in South Pittsburg Monday morning.

The Sheriff’s Office says the investigation began with a call to 911 around 5:00 a.m. from a home on Chance Road.

Officers arrived at the scene and found the victim’s body.

The Sheriff’s Office says a person of interest was taken into custody by the Marion County SWAT Team around 6:30 a.m.

No names have been released at this time.

The TBI is leading the investigation. TBI spokesperson says an autopsy will be done on Tuesday to determine a cause of death.

Stay with WRCBtv.com for updates to this story.