nearby, causing the fractured skull? and knocking him unconscious? lentini believes the charge of arson and murder had been a rush to judgment and that the care kerosene heater was to blame. >> basically, what you do, you fill this up with kerosene or diesel fuel. you're generating lots and lots of soot. what you have is soot coats the inside and it will catch on fire like charcoal. so if you don't allow this thing to cool down sufficiently, that's pretty dangerous. >> in a surprising discovery, gas chromatography of the residue inside the heater's fuel tank identified gasoline and not kerosene. it takes more heat to ignite kerosene. gasoline ignites at very low temperatures. >> the difference in flammability in gasoline and kerosene is tremendous. and i worked in a lot of fires where people misfuel kerosene heaters with gasoline and end up having big fires. >> jean said they were using the