Given a document, find the main entity about whom the author is writing. Write the full name if mentioned in the text. Note that URLs in the text have been replaced with [Link].
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Question: Facebookâs  first major investor Peter Thiel  has sold three-quarters of  his  remaining stake in the social network as part of a previously established trading plan  a regulatory filing showed.
 Thiel   who is a member of Facebookâs board  had already sold more than $1 billion worth of  its  stock before the filing made on Tuesday.
 It  said  he  had sold another 160 805 shares for about $29 million  leaving  his  holdings at 59 913 Class A shares in the company.
 Thiel  co-founded payment service PayPal and is known for funding the Hulk Hogan lawsuit that led to the shutdown of online news site Gawker. He became a Facebook investor in 2004 with an initial investment of $500 000 at a $5 million valuation.
When Zuckerberg took the company public in 2012   Thiel  sold 16.8 million shares at the IPO for about $640 million. Later the same year  he sold roughly 20 million of his remaining 26 million shares for $400 million after the expiry of a lockup.

Answer: Peter Thiel


Question: But courtroom one is now an active crime scene after the dramatic events when  former Bosnian Croat military leader Slobodan Praljak  tipped the contents of a small brown bottle into  his  mouth and died shortly afterwards in hospital.
The unprecedented gesture came as  Praljak   72  angrily denied being a criminal  after judges rejected his appeal and upheld his 20-year jail term for atrocities committed in a breakaway Bosnian Croat statelet during the 1990s wars.
It remains a mystery exactly what  Praljak  drank and how  he  managed to evade tight security to smuggle the bottle into the tribunal.
There are also questions about how  he  acquired the substance and if it was in the fortress-like UN detention centre in The Hague where  he  was being held.
Under court rules  everyone entering the detention centre is subjected to tight security âirrespective of  his  or her status  nationality  function or ageâ.

Answer: Slobodan Praljak


Question: Given the leather jacket and sneer  Tom Petty  wore on the cover of  his  1976 debut  many people assumed  he  was one of those cheeky punks bent on tearing down the walls of rock 'n' roll.
 He  wasn't. It's not that Petty and  his  band  the Heartbreakers  didn't have their share of energy and attitude. But the kid from Gainesville  Florida  was a rock classicist to the core  and he built a body of work to stand with his heroes.
It was melodic rock 'n' roll built with the solid structures of his favorites from the 1960s.  Petty  had an impish grin and playful drawl  and in concert  he  raised  his  arms to direct both  his  band and the thousands of fans singing along from the audience.
"'Rock and roll star' is probably the purest manifestation of the American dream "  Petty  said upon  his  2002 induction into the Rock and Roll Hall of Fame. "It's a blessing beyond belief."
The Heartbreakers stood with Bruce Springsteen's E Street Band as one of the all-time great rock backup bands.  Petty  wouldn't give ground:  he  added an expletive to  his  declaration on that night that the Heartbreakers weren't just one of America's best bands  they were THE best. Being able to stand onstage next to guitarist Mike Campbell and keyboard player Benmont Tench made  Petty  the envy of many bandleaders.
Still  two key periods of  his  career came without the Heartbreakers.
"Full Moon Fever " Petty's first solo album in 1989  stands as the apex of  his  career. Working with producer Jeff Lynne  Petty fashioned a cleaner sound and created the classics "Runnin' Down a Dream " ''I Won't Back Down" and  most indelibly  "Free Fallin'."

Answer:
Tom Petty