detective peter hedley called bob evans an incredibly good conman.mself to other people, to mold himself to the situation to get what he wanted. >> by this point investigators had connected three of the four mysteries with each other -- eunsoon jun's murder, the identity of lisa, and the disappearance and presumed murder of denise beaudin. >> after 30 years, in 2016 police open a missing person's case on denise beaudin. she had not been reported missing before then. >> then a case manager at the national center for missing and exploited children looked at a map. manchester, where denise beaudin was last seen, was only about 25 minutes from bear brook state park. denise went missing in 1981. the first barrel was discovered in 1985. >> we started to look at the timeframe and the proximity and we're like, wow. there's a potential that these two cases could be related. >> so, investigators wondered, is denise the adult victim from the first barrel? 1... hey guys, my windshield just got broken, i feel like i need to blow off some steam. let's go... 1, 2,