amber belkin was loa force to reckon with. a petite young woman whose big dreams and omdrive made her see unstoppable. then, she was found murdered. was amber the victim of a robbery gone bad or was this brutal crime personal? three people knew the truth. two of lethem would risk their lives to reveal it. here's keith morrison with, everything she knew. >> it was a monday morning in january., 2007. 9:08 a.m. a young woman in san antonio texted her boyfriend. i love you. that's all it said. i love you. nothing more. downtown, the alamo had just opened its doors. a few tourists began boarding little boats to gaze at remnants of texas history along urban stretches of the san antonio river. several miles away in the farther reaches of the modern city, the manager of a video game store began his daily ritual. his name was mariano rivera. >> the managers typically get there ivat 9:00 in the morning. grab the money, take it with you, and go to the bank. >> similar process in the sister store. same company, not far away. that one mana