A former merchandizing agent for R. Kelly testified Tuesday that the singer offered him $1 million to find a VHS tape featuring Kelly as prosecutors sought to persuade jurors that Kelly was desperate to recover the missing recording, knowing it could land him in legal peril if it fell into the hands of law enforcement.Based in part on that recording, which prosecutors say shows the R&B star sexually abusing a 14-year-old girl, Kelly faces charges that include production of child pornography. He is also accused of …