A relative of Floyd Mayweather's girlfriend, Jamie Lynn, committed suicide at a Las Vegas condo owned by the boxing legend earlier this week, TMZ Sports has learned.
We're told 24-year-old Jarrett Johnson was discovered by a friend who showed up to the condominium on August 22 around 4:30 PM. The friend called 9-1-1 ... but when police responded, Johnson was deceased.
Sources say Jarrett died by hanging.
Johnson was a standout football player ... he was an all-conference quarterback in high school and the Southeast Missouri All-Region Athlete of the Year.