duquesne: salucci wasn't messing around.right on the spot where his daughter was killed. packed him tight, too. slowed decomp. hang on. william campbell said he only heard one shot, right? yeah. why? well, the only entry wound is in his kneecap. he wouldn't have died from that injury. why not shoot to kill? i don't know. maybe you've got the answer. any idea of the cause of death? yes, actually. looks like our killer planted an american flag. excuse me? red eyes, white skin, blue lips. all consistent with strangulation. actually, it looks like his shirt covered up some evidence here. got a thin residue of something. sometimes, even a touch of evil can close the case. so, a.j. watkins was strangled. yeah, tara confirmed that at the post. but the killer left something behind. talk to me. calleigh found some pollen on the neck of the victim. uh, said it's from a lily. problem is, there's over a hured varieties. a lily. i called the dade u botany department, to see if they could narrow it down to one. that's not going to be nece