Our focus now turns to the potential of record lows tonight. Many areas may wake up to thermometer readings below zero.
State police are investigating after a son finds his parents dead inside their home.
Police were called to the home, on Shepherdsville Road north of Elizabethtown, just after 5 Tuesday morning.
Police say one of the couple's sons, Steven Buggeland, regularly checks on them each morning, and found them dead in the bedroom.
"I haven't slept in 2 days," says Steven Buggeland. "It's just like a dream, not a dream, but a nightmare."
State Troopers say victims are 76-year-old Margaret Buggeland and 70-year-old Terja Buggeland. Both were retired doctors who had practices in Hardin County.
Police aren't releasing how they died but, they say this is a double murder investigation.
Police also say the couple have an adult son who lived with them. His name is Erik Buggeland. Police say he's six feet tall and weighs 370 pounds. Police say they are looking for Erik Buggeland as a missing person, and they fear he may be in danger. Steven Buggeland says it's what he has feared all along.
"I think they killed my parents and then caught my brother somehow and killed him, and stuffed him in the car and took off with it," says Steven Buggeland.
Police had been hoping he could help with the investigation.
Police are also looking for a gold 2003 Honda Accord, with Kentucky license plate 009-EDC, in connection with this case.
We're told the car is missing from the home.