randy tundidor jr. was 21 into drugs. is probation and a burglary wrap. did you go talk? >> when we couldn't find him. >> but detectives could find his father, randy sr. at the town house. randy sr. said he hadn't talked to his son in a while. and when police went looking for randy jr. at the family window tinting business called gator tint, an alert officer notice something suspicious. >> a canine sergeant seized stuff between the lid of the dumpster and the dumpster itself. a zip tie. i drive down there, i immediately identify it as the same make, size, of the ones used in the murder. that's a solid piece of evidence. >> that's your first break? >> yeah. >> we randy sr. allowed police to search the business without a warrant. >> immediately we see there is a bag of the same type of wire tires that were used to tie up joseph morrissey. they also sell knives at the business. there is an empty box that holds a 15 inch bowie knife. when he's asked, where's the knife that belongs to this box, he tells us a should be be there.