shep. >> shepard: the investigators are saying this couple, the barksdales may have had some help with the original crime? >> yeah, detectives working the case said they identified a person of interest in the arson as brent mallard. he's the 30-year-old nephew of blaine barksdale. police say after mallard was tied to the case, he was arrested and booked on felony charges of burglary and felony criminal damage. police say that blaine barksdale will stick out to any one that spots him. he's 6'5", weighs 260. he has numerous tattoos on his arms and hands. police warm people not to approach and call 911 immediately. the barksdales were last seen driving a stolen red gmc sierra with arizona plates. i spoke to one of barksdale's adult children and they are upset that their father was involved in such crime and they