LANCASTER COUNTY, S.C. -- Authorities said a homeowner shot and killed a teenager trying to rob him Friday morning. Turns out, that teenager lived right next door.

Lancaster County sheriff's deputies said 18-year-old Jarkevious Ingram walked out of the woods on Culp Street late Thursday night with two other men. One was wearing a ski mask and two of them, including Ingram, had guns, deputies said.

Detectives said they approached 34-year-old Ed Patterson Jr. who was just getting home. According to deputies, the three men demanded Patterson's wallet and his keys.

Patterson struggled for the gun and was shot twice, once in the stomach and once in the groin. He managed to wrestle the gun away and shoot Ingram, deputies said.

Ingram walked more than 100 yards down Culp Street and collapsed on Fahbian McCullough's front porch.

"I looked out and he was lying on the porch, and there was blood everywhere," McCullough said.

He said Ingram was his friend and was at his house nearly every day. He had heard gunshots, but didn't know what was going on until he opened the door and found Ingram.

"I asked him what happened, and he said, ‘Be quiet.' He wouldn't tell me," McCullough said.

Patterson was able to drive himself to Springs Memorial Hospital, and he was later flown to Carolinas Medical Center in Charlotte. Deputies said his injuries were not life- threatening.

Mikesheia Wade is Ingram's cousin. She was at his side at the hospital when he died.

"I was there with him the whole time. I was holding his hand. He wasn't doing too well," Wade said. "I don't think he did this. The truth is going to be different than what people think.”

Lancaster County sheriff's deputies said they don't yet know why it appears Ingram tried to rob his own neighbor. Cousins said the two families have lived next door to each other for more than a year.

Major David Belk said detectives are still investigating, and it's not known if Patterson will face charges.

Deputies said they did recover the gun, a .38-caliber revolver that Patterson left in his sport utility vehicle when he drove to the hospital.