A new bombshell revelation in the Kobe Bryant case threatens to destroy the credibility of the prosecution’s key witness - whose testimony could send the basketball superstar to jail for years. Sources told GLOBE that the 19-year-old woman who has accused Bryant of rape told them she had sex with the prosecution’s star witness Bobby Pietrack - a week before she met Bryant. Pietrack, a 23-year-old bellhop at the resort where the alleged rape took place, is the first person Katelyn Faber told about her encounter with Bryant. He can testify about her emotional state and physical appearance at the...