Warning: this is probably the most depressing thing you'll read all day (or even all week):
An Austrian engineer has confessed to fathering seven children by raping his own daughter and keeping them captive in the cellar, Austrian police said today.
Eric Gill was a respected British artist and typographer -- Gill Sans is his most famous typeface -- but according to his diaries, he also regularly engaged in sexual relations with his sisters, his daughters, and the family dog.
For some of Gill's fans, even looking at his work became impossible. Most problematically, he was a Catholic convert who created some of the most popular devotional art of his era, such as the Stations of the Cross in Westminster Cathedral, where worshippers pray at each panel depicting the suffering of Jesus.
These details of Gill's private life were revealed in a 1989 book by Fiona MacCarthy...here's a NY Times review of the book soon after it was published.
"Fisher Island millionaire Bruce McMahan loved his daughter so much, he married her." See also genetic sexual attraction.