7NEWS Spotlight

The mysterious disappearance of alleged conwoman Melissa Caddick stunned Australia. Now her husband - the last person to see her alive - speaks.

Three-time Olympian snowboarder Alex 'Chumpy' Pullin & his girlfriend, Ellidy had it all. They were madly in love and were going to start a family, until a freak accident changed everything.

Criminal psychologists Tim Watson-Munro and Xanthe Mallett delve into the minds of some of the world's worst psychopaths, narcissists and sociopaths to unravel the real reasons behind their crimes.