one of the groomsmen says-- >> john meehan's nickname is filthy john meehan. >> filthy john over thehn, and the nickname stuck. >> you found out later on there was a story to that. >> yes, he was basically conning little old women out of money for jobs he did not do and also he had a way with the ladies. >> john supplied the opioids that killed his own addicted brother. he was alone with his sick father when the old man died rather suddenly. john was not charged in those cases, but there were others said lucan. as years went on, he developed a certain criminal specialty. >> he would go on dating websites and would find women that usually had good financial backing. he always told people he was a doctor. >> he seemed like an ideal catch i suppose for a lot of these women. >> he was a true conman. he would take their money, and when they would find out about him, john would threaten them, he would terrorize them. >> how bad was he? >> john was the most dangerous, treacherous, manipulative, deceitful criminal i had investigated in four years of law enforcement. >> once terra learned abo

. >> and dirty john meehan is an ever more distant memory now. his trail of victims safe from his terror, thanks to a young woman and a little dog who fought for her life and won. >>> that's all for this edition of "dateline." i'm andrea canning, thanks for watching. watching. >>> good morning, welcome to the saturday edition of "morning joe weekend." >>> it was a busy week in politics, let's get right to it. some of the conversations you might have missed. might have m. >> let me finish with this, team. it is the fourth quarter. we are down a field goal, but we are on offense, and we got the ball. we are driving down the field. and boy, do we have the right team. kamala harris is tough. kamala harris is experienced, and kamala harris is ready. our job, our job, our job for everyone watching, is to get in the trenches and do the blocking and tackling, one inch at a time. one yard at a time, one phone call at a time, one door knock at a time. one $5 donation at a time. >> honestly, we say this i feel like every night, john, just the enthusiasm in