Christian Reichardt, a chiropractor with practices in Malibu and Santa Monica, testified as a defense witness about his friendship with O.J. Simpson, which began in the summer of 1993. Called by Johnnie Cochran, Reichardt told the jury that Simpson sounded jovial and happy during a June 12 phone call, directly countering the prosecution's theory that Simpson was driven by romantic depression. His testimony drew sustained attention from both sides, with Christopher Darden conducting multiple rounds of cross-examination and Cochran returning for repeated redirect, all within a single day on the stand.