Just months ago, 70-year-old Dr. Frank Meza finished the Los Angeles Marathon.br It would have been a record-beating time for his age group: 2 hours, 53 minutes and 10 seconds.br On Thursday he was found dead in the Los Angeles River under a bridge about a mile from Dodger Stadium.br His death came just days after race officials threw out his result over allegations that he'd cheated.br According to CNN, Dr. Meza denied the allegations.