took place in calaveras county superior court approximately 29 years almost to the date after christina karlsen measures, extinguished the life that was christina. and he did it on purpose. >> some of the most critical testimony came from that fire investigator hired by the insurance company, ken buske. >> the trouble didn't ignite this, none of the appliances in the home ignited this, it had to be a person applying flame to the kerosene. >> ladies and gentlemen, the defendant had motive. his motive in this case was greed. greed. >> the defense was questioning the validity of what happened. >> we all know that that evidence is 29 years old. >> the defense's argument seemed to be that if the case wasn't strong enough back in 1991, what would make anything different now? >> it wouldn't take long for the jury to come back with their verdict. >> we, the jury, find the defendant, karl holger karlsen, guilty of murder in the first degree. >> karlsen had no reaction at all. stone cold. in fact, it looked like he almost expected that verdict. >> i've never been more humbled by or grateful to 12 strange

. >> karlsen's first wife, christina was 30 years old when she died in a tragic fire just years before he would meet his second wife, cindy karlsen. >> he seemed like he was a hands-on dad. the youngest, katie, adored her father. erin and levi seemed like they had a special bond. >> levi was amazing. he was so creative. he was very smart, but he had a learning disability, so when it came to bringing home good grades, he couldn't because of the disability. >> levi had a difficult life growing up. levi's life was everything that you wouldn't want your kid to grow up with. he went through a rebellious time in his teenage years. and, um, him and his father seemed to clash. >> as he got older, he got into more of the metal music, and he kind of changed his appearance a little bit, but deep down, he was always still that same goofy kid. >> he married early. had two young daughters. the marriage didn't pan out. >> levi kind of pulled his life together. he was a good young man. he wanted to make better of his life. >> on november 20, 2008, 911 received a frantic call from cindy karlsen. >> 911