it was a case prosecutor sonia balleste couldn't wait to try. the making, and as it turned out, it would be her last. sonia had been promoted to management. >> my swan song, yes. >> so you wanted to go out with a win. >> prosecutors don't like to lose. >> i've noticed that. despite what you've seen, the case still wasn't a slam-dunk. there was no moof magdi knew the alleged killer, anthony bridget, no evidence he paid bridget any money. while detectives had their suspicions about the involvement of a middleman, they still couldn't prove it. and as you'll see, even that undercover tape could be seen through a different lens. on the eve of the trial, richard and ryan got ready for the big day. their suits were pressed. they reviewed their prior statements. and they weighed the consequences of what this in a moment meant. >> i'm happy that we'll get closure, but then it's just sad. we lost our mom. in the same light, we lost our dad, too. >> their only surviving parent. the one they lived in fear of for years, would be the one they had to face in co