Thank you, Kari, Grant and Tory, for 10 AMAZING years. Watch as the 'Mythbusters' cast says farewell to three fan favorites.AOL On PlayThis goliath spider may give you nightmaresAn entomologist stumbled upon a South American Goliath Birdeater. With a name like that, you know it's a terrifying creepy crawler. Sean Dowling has the details. PlayPistorius gets 5 years in prison for killing girlfriendOscar Pistorius was sentenced in South Africa today to five years in prison for the 2013 shooting death of his then-girlfriend, model Reeva Steenkamp.