so we're partnering with cigna to remind you to go see a real doctor. go, know, and take control of your health. it could save your life. doctor poses! dad! cigna. together, all the way. >>> good evening. thank you for joining us. tonight the disturbing story of a veterinarian and a doctor who fell in love and allegedly plotted to hire a hitman to kill their exes. police say it all unfold nld olive garden. we'll hear from a doctor behind bars, the audio diaries of his former lover, and the cops who orchestrated the sting operation. here's abc's matt gutman. >> i never wanted to hurt anyone. i hate the idea they think i'm a monster. >> reporter: monster, not a word valerie mcdaniel easily friends would use to describe her. >> valerie was an amazing human being. she had a light within her. >> reporter: and an alleged murder for hire plot about the last thing they thought she'd ever be involved in. >> i wanted to take time and tell my story from the beginning. try not to judge me. >> reporter: these audio diaries a window into a life by all accounts

cigna. together, all the way. >>> good evening. thank you for joining us. tonight another escalation in the war of words between president trump and north korean dictator kim jong-un. this time with the leaders of the world watching. the president's first address to the united nations. so what comes next? we go inside the brutal regime. >> a war of words across the pacific. >> details about north korea's missile launch -- >> north korea claims it has successfully tested a hydrogen bomb. >> north korea has fired off another missile. >> and a show of force from both sides. >> he has said things are horrific. with me he's not getting away with it. >> escalating tensions between the and u.s. north korea on extraordinary heights in recent months. >> they will be met with fire and fury like the world has never seen. >> and this morning at the u.n. general assembly -- >> if it is forced to defend have no choice but to totally destroy north korea. >> president trump singling out kim jong-un on the word stage in one of the most high stakes foreign policy speeches of

cigna. together, all the way. >>> good evening. we begin here tonight with the breaking news, the destruction in puerto rico after a direct hit from hurricane maria, one of the worst storms to strike that island in decades. knocking out the spire power grid. abc's victor oquendo is on the ground tonight. >> reporter: tonight, maria's direct hit devastating puerto rico. the first category 4 storm to strike puerto rico in 85 years, slamming ashore around sunrise. roofs peeled from buildings. debris flying. many of these homes not built to withstand any hurricane, let alone a category 4. we're outside of san juan in a town hit very hard. a lot of destruction to homes, downed trees and power lines. now in every direction. up to 30 inches of rain in some areas engulfing whole neighborhoods. 12,000 people needing to get to shelters, including a hotel's ballroom. ♪ terrified residents singing about strength during trying times, to ease the fear. ♪ for "nightline," i'm victor oquendo, san juan, puerto rico. >> our thanks to victor. >>>

cigna. together, all the way. >>> good evening. they might empty your bank accounts, steal your car off the road, even shut down a nuclear power plant. all without leaving the couch. in the age of connectivity, hackers are becoming the most dangerous criminals in the world. the only people who can stop them, other hackers. tonight abc's nick watt takes us to las vegas and what may be the super bowl of hacking. >> massive security breach -- >> hackers targeting credit-monitoring company equifax -- >> reporter: hackers want your financial information. >> criminals can access it, can buy it, where it's for sale. >> hackers came on episodes of several hit shows including "game of thrones." >> reporter: they're hacking our entertainment. >> we noticed that hack swiftly. >> reporter: hacking our social media. >> a massive and coordinated hack -- >> reporter: some interfering in elections overseas. >> the fbi investigating accusations vladimir putin and the russians were trying to sway the election -- >> reporter: and right here at >> thi