A third man has been arrested in connection with the murder of Floyd Mayweather boxing prodigy Danny Gonzalez, TMZ Sports has confirmed.
Cops say 28-year-old Joseph Goldsmith turned himself in Monday and was arrested for 1st degree murder.
He's now the third suspect officials have booked on murder charges stemming from the Sept. 7 incident.
As we previously reported, 22-year-old Gonzalez -- who signed with Mayweather's The Money Team in 2016 -- was killed on Labor Day in Moreno Valley, Calif.
Authorities say Gonzalez was shot along with two other victims .