and information presented in this very television series suggested a new way to test them. i was watching one night and they had a story about out west in arizona had done a plant dna case. the crux of that investigation was a seedpod found in a suspect s truck which was later matched with plant dna to the palo verde tree next to the victim s body. ryan bolt contacted the scientist who pioneered plant dna analysis and asked them to test the oak leaf found in larry s trunk to determine if it came from the oak tree near judy s body. unfortunately, too many years had passed and scientists were unable to extract any dna to the leaf. to their credit, police didn t give up. investigators decided to retest the stains on the bedding from judy bruce s bedroom.