. >> ken buske turns his report in em,e's cnc this is no accident. >> but for whatever reason, that reportt stop the insurance company from paying out the claim. >> karl was paid $215,000, and it was not explained why their recommendation to not have him be paid out was overlooked. >> the insurance company did a very good investigation. law enforcement, it didn't seem, was doing anything. >> i never saw mr. buske's report. i didn't know who mr. buske was. >> it just seemed like, when karl moved to new york a few days after the fire, it's like everything stopped. and there wasn't much follow-up. >> i asked if they would front the monies for me to travel back there and interview him. >> carl kent wanted to go to new york to interview karlsen in person, but his superiors turned him down, saying that there just wasn't enough money for that kind of trip. >> the da's office said it was a good circumstantial case, but there wasn't enough to prosecute it at that time. >>> when we come back, tragic accident or heinous crimes? >> did he get away with murder, not once, but twice? >> and what would bl

. >> state farm brought in ken buske. >> typically i'm hired by an insurance company to answer what the the hot bulb from the trouble light could ignite the kerosene soaked into the carpet. >> reporter: but you know, when that investigator looked at this severely burned light, he was able to determine that the filament had not been energized at the time of the fire, meaning the light was not on. >> if a bulb is off, of course, it's not apt to be the cause of a fire. mr. karlsen's story simply couldn't have been true. >> so ken buske turns his report into the insurance company telling them he's convinced that this was no accident. >> this was a set fire by a human being. well, we clearly know there was only one human being capable of starting that fire. >> but for whatever reason, that report didn't stop the insurance company from paying out the claim. >> karl was paid $215,000, and it was not explained why their recommendation to not have him be paid out was overlooked. >> the insurance company did a very good investigation. law enforcement, it didn't seem, was doing anything. >> i neve