Belle Gibson
https://www.youtube.com/watch?v=xsw90DY5gEI
Belle Gibson built an instagram, blogging and app wellness empire based on the lie that she had cured terminal brain cancer (then later, third and fourth cancers) with wholefoods and healthy living. She created an elaborate web of lies. She was uncovered earlier this year as having never had brain cancer and many many untruths were uncovered. She continues to lie and imply she never tried to deceive people. She is clearly some kind of pathological liar, munchasens, sociopath or personality disordered. It's blatantly obvious she's lying but may still be an interesting case study. The whole video above is interesting but a particularly good example of he lies starts at 24 mins.