MORRISTOWN, Tenn. (WVLT) -- Hamblen County Sheriff's Deputies say a 31-year-old man was arrested Wednesday afternoon in connection with a Morristown home invasion burglary.
Ricky Vega Bias is facing attempted first degree murder charges and attempted armed robbery charges.
He was arrested around 3:30 p.m., and deputies say he is also wanted in New York on a parole violation.
Scott Knight answered his door around 1:30 Saturday morning to a woman who said she was having car trouble.
Knight thought it was suspicious and went for his gun. When he came back to the door, two black men tried to force their way in.
Knight says the intruders started firing assault-style weapons and Knight returned fire, striking and killing the woman, and hitting at least one of the other suspects. That suspect, which police say turned out to be Bias, later showed up at UT Medical Center in Knoxville.
Sheriff Esco Jarnagin believes the intruders pinpointed the Knight family.
"I think they were targeted. We're still trying to determine the exact motive, of course, robbery was a suspected motive, also we suspected the family was going to be harmed," he says. "I will confirm that these were foster parents, and they did have a runaway foster youth back in March, and he is a person of interest right now."
It is still unclear what, if any, role that 17-year-old foster child played in the incident.
The woman who was shot and killed has been identified as Holly Ann Repasky, 29, from Knoxville.
Authorities don't plan on charging Knight with her death.
"Robbery is a suspected motive and we also suspected that they were going to be harmed," said the sheriff. "Scott Knight is to be commended for a job well done in defending his home and family at high risk to himself."