RICHMOND (CBS SF) — A former NFL player was shot and killed at a home on Fascination Circle in Richmond on Wednesday evening, according to the man’s family.

Terrell Roberts, who played two seasons as a defensive back for the Cincinnati Bengals in mid-2000s, was at his grandmother’s home on the 1200 block of Fascination Circle when someone entered the residence and shot him in the backyard, the family said.

Roberts’s family said he had a “heart of gold” and had no known enemies. They said he was not “mixed up in anything bad.”

Neighbor Domald Monk spoke with Roberts grandmother.

“She was saying that she knew some of his so-called friends but she doesn’t know who it was, why they would do it to him,” he told KPIX 5. “She didn’t know.”

Richmond police Sgt. Enrik Melgoza said officers arrived and found Roberts in the backyard of the home with a gunshot wound to the chest. He was pronounced dead at the scene.

Investigators determined the shooting happened in the garage after a disturbance between Roberts and the suspect, and Roberts then stumbled out to the backyard where officers found him.

Police do not yet know if Roberts knew the suspect, described as a black man between 20 and 35 years old who is bald with a short beard, weighs about 250 pounds and wore a black T-shirt, Melgoza said.

I’m crushed to hear the news of the passing of my teammate and friend Terrell Roberts. Prayers to his family and friends during this difficult time. — Jonathan Smith (@Coach_Smith) September 12, 2019

Roberts starred on the gridiron at El Cerrito High School before heading to Oregon State University. While with the Beavers, the 5-foot-10 Roberts saw most of his action in 2001 and 2002. He had five career interceptions.