. >>> chuck koch has used my sons as nothing but pawns inned media.t's had an impact on me, and has had an even deeper impact on my sons than on me. it has had an impact -- >> hmm. chilling words from the father who police say killed his own sons, his sons and himself. now josh's in-laws say there were warning signs and big red flags. she had called on police to arrest powell. that's next. >>> josh powell is probably the most disguised father in america right now, and before he died, he gave this interview. >> i took my sons to a class this morning to learn about predators. >> why predators? >> because i had the opportunity. >> as we all know, in the end, josh powell was the predator the boys needed protection from. josh powell used a hatchet on 4-year-old braden and two-year-old charlie. he gave their toys away ahead of time. the boys were on a court-ordered visit that was supposed to be supervised, but powell locked out the social worker moments after he set the house on fire. he left a voicemail for his brother, cousins aan you seousi family member

not only did they lose their daughter susan, but chuck and judy koch have also lost their grandchildrenle shock for them. they did ask for privacy, they also asked for prayers, and they told her they feared this day would come. this was something in the back of their minds, and they were just about to have custody of those children, so you can just imagine the heartache that they're feeling right now, michael. >> you know, we mentioned in the intro to this that he had lost custody of his boys. there were to be supervised visits, which is how this all unfolded. why had he lost custody? >> reporter: he had lost custody because he was living with his father at one point. the boys were also living with their grandfather, steven powell, and steven powell, back in december 2011, michael, was arrested on 14 counts of possessing child pornography and also voyeurism. so a judge took custody away from josh powell and put those children with susan powell, who lives here in washington as well. >> there's something about a voice mail from josh powell to his cousin. >> reporter: yes. he has apparentl