VANDERBURGH CO., IN (WFIE) - The man officials said started a house fire that killed his son to be step-children has been arrested.
The arrest was made in northern Kentucky after a police chase Saturday morning.
Jeffery Weishet was arrested in Boone County, Kentucky.
"This is tough stuff," Vanderburgh County Sheriff Eric Williams said.
Just before 4:00 a.m. Saturday, German Township Fire Department responded to a house fire on Fischer Road in northern Vanderburgh County.
"It was indeed a fully engulfed residence," Williams said.
As firefighters battled to control the blaze, authorities attempted to make contact with Lisa Lynch, the owner of the home.
"She said she was at work, but my fiancée and two children should be there at the home right now and my fiancée drives this kind of vehicle so it should be there," Williams said.
Authorities said her fiancée, Jeffery Weishet, wasn't home.
"The fire was put out and our people, along with German Township, began searching through that debris, and as a result of that search we recovered two deceased children that were burned badly," Williams said.
In the meantime, authorities located Weishet and his yellow sports car in Boone County, Kentucky.
14 News exclusive pictures show the moments after police chased Weishet's vehicle.
You can see him laying on the ground after police tased him.
Officials said Weishet was taken to a hospital for injuries he sustained from falling to the ground.
Authorities said he was questioned about the incident and admitted to lighting the home on fire with his fiancée's two children inside.
Now three warrants have been issued for his arrest.
Sheriff Williams applauds first responders for the quick action.
"I'd like to say it was good, old fashioned police work, beating the bushes and talking to the right kind of people, and that was part of it, but there was so much circumstantial evidence that availed itself to us plus evidence from people and it was pretty apparent that he was definitely someone we needed to talk to," Williams said.
Authorities said Weishet will be extradited back to Vanderburgh County once he recovers from those injuries.