time was running out for josh powell. n up about the night their mother disappeared. meanwhile, a judge ordered josh to take a polygraph. but first, he planned to see his boys. and who could have predicted what a dark turn those plans would take? now to keith morrison with the conclusion of a family story. >> he was a person of interest in susan powell's disappearance. the target of a relentless police investigation, his contacts with his two sons had been reduced by a court order to a few hours twice a week. rumors of an imminent arrest swirled around him and josh powell was preparing to strike by. hear what police have pieced together of his final days. in february for 2012 he deposited his children's toys and clothing at a charity drop box near bhis house, at 11:32 am he walking to a bank where he withdrew $7,000 intra -- to his sister, who is still close to him. at 1:30 pm he arrived at this storage unit. here, police said, he spent an hour and a half going through susan's belongings. then back in his mini van he drove

>> yes, because that was actually the former chief of staff for lapierre at one point, josh powell, and he is, as part of that settlement, going to testify in this case. so likely his testimony will probably be detrimental towards wayne lapierre and other members of leadership. >> how do you see this lawsuit -- and of course, you know, we will see how it all plays out. how will it affect the nra's lobbying power and its impact on the 2024 election? >> i mean, i think that this has drug on for almost five years now and it's going to have an impact regardless of the outcome of this case, even if the nra wins on the points that it's putting out which the nra says it's reformed and punished the people that were responsible for a lot of these issues, but as i mentioned they've actually lost a million members, more than a million members, so their finances are way down. they spent 50 plus million dollars in 2016 and they've only spent half of that the next year -- the next election cycle and they probably won't be able to even do that this time around. >> and what about lapierre and his futur