in august of 2018, a year and a half after her death, jamie baldwin was arrested for the murder of hiscould breathe a little bit. he's arrested for the murder of my mom. >> but now came the hard part. how to prosecute a case with a little physical evidence. this was no slam dunk. >> it was far from it and the family knew going in that we had a real battle. >> coming up -- >> maybe her falling off the ladder isn't going to be a good explanation as to why she has this horrible injury. he comes with the idea that she was ejected from the vehicle. >> the jaw-dropping story told by the jeep. >> most people are aware that planes have black boxes, vehicles have them to, and in this case, judy's wrangler had a black box. >> it did. >> when dateline continues. new emergen-c crystals pop and fizz when you throw them back. and who doesn't love a good throwback? [sfx: video game] emergen-c crystals. [music playing] subject 1: cancer is a long journey. it's overwhelming, but you just have to put your mind to it and fight. subject 2: it doesn't feel good because you can't play outside with other chi