Wroblewski was all alone in his Silver Springs Shores home watching TV Monday night when someone knocked on the door. A man he didn't know was asking for help and would not go away.

911 CALL: Neighbor Calls For HelpAT THE SCENE: Images Of Man In Wheelchair, SuspectRAW INTERVIEW: Wheelchair-Bound Man Describes Shooting Incident

When Wroblewiski opened the door a crack with his gun hidden in his hand, a second man wearing a bandanna jumped out and pushed his way through the front door. The second guy, however, turned out not to be a stranger.

Wroblewski showed Eyewitness News on Tuesday how he lined up the wheels of his wheelchair so the intruders weren't able to roll him backwards and get in. But, he said, when he cracked the door open, one of them pushed him over onto the floor and that's when he fired three shots.

“Can you describe how you felt at the moment you opened fire? What was going on in your mind at that point?” WFTV reporter Kathi Belich asked.

“Self preservation,” Wroblewski replied.

Then Wroblewski said he got another shock. He looked at the man he shot, who was wearing a bandanna. The man resembled someone who had pestered him for help over the last couple of months after wandering through his neighborhood. The man, officers said, was 24-year-old Jeffrey Kenney and, in fact, it was Kenney who attacked Wroblewski.

“You lose your faith in humanity, I'll tell you that,” he said.

Deputies say Kenney was shot and killed. Wroblewski said it took him ten minutes to calm down and hoist himself back into his wheelchair. He had no idea where the other guy had gone, so he grabbed his gun and went outside yelling to his neighbors for help.

Kassandra Grossenbach lives next door. Her family heard the shots and made sure he got help. They're watching over the man they know as "Mr. Gary" to help him get through this.

“He's scared, he still doesn't want to open his doors,” Grossenbach said.

“I don't relish or take any pleasure in killing people, that's for sure. I basically try to mind my own business, but it just doesn't seem to work very well sometimes,” Wroblewski said.

Wroblewski is paralyzed from the waist down after he had surgery for an old injury. He won't face any charges in the shooting; he's protected by the Castle Doctrine, which gives people the right to kill someone, in self-defense, on their own property.

Kenney, deputies say, has been arrested numerous times on drug and theft charges. The second suspect, who fled after his partner was shot, was caught Tuesday after a tip led police to his whereabouts. Ruben Gonzalez, 18, will face felony murder charges, because his partner was killed during a crime he was a part of.