16-year-old Prince Jackson (pictured left) took the stand in the King of Pop's wrongful death trial today (June 26) and revealed that his father was often left in tears following conversations with AEG and 'This Is It' promoters.

He explained to the courtroom that the late Michael Jackson wanted more time to rehearse for the ill-fated series of shows and had several intense conversations with the team that troubled him. Prince added that his father even once exclaimed, "they're going to kill me".

Prince also confessed that just days before the 'Thriller' icon passed away, he saw AEG Live CEO Randy Phillips at his house and witnessed him grabbing the elbow of Jackson's doctor, Conrad Murray. "He looked aggressive to me," Prince testified.

When asked about Dr. Murray's treatment of Jackson, Prince said: "I was 12. To my understanding he was supposed to make sure my dad stayed healthy."