Rapper reveals late crew mate's contribution to his next effort.
Indie film sparks a bidding war at Sundance Film Festival.
Rapper opens up for the first time about friend's passing.
Preliminary examination completed on body of 26-year-old A$AP Mob co-founder.
Drake, Wiz Khalifa, Mac Miller and more pay their respects.
A$AP Mob crew mourns the passing of their founding member.