Simone Biles may be killing in on the gym mats but her brother is in police custody for killing it in real life.
Olympic gymnast Simone Biles' older brother is arrested for the murders of 3 people ... after an 8-month investigation into a New Year's Eve tragedy.
Tevin Biles-Thomas was arrested Thursday at Fort Stewart in Georgia, where he is an active duty soldier in the Army. Police say Biles-Thomas opened fired on a group of people when a fight broke out during a New Year's Eve party at an Airbnb in Cleveland.
According to cops, an "uninvited" group of people had entered the house party and during the ensuing brawl ... Biles-Thomas fired the shots that killed three men and injured 2 others.
A Cuyahoga County Grand Jury returned an indictment of Biles-Thomas for 6 counts of murder, 3 counts of voluntary manslaughter, 5 counts of felonious assault and 1 count of perjury. Under Ohio law, "purposely killing" and "knowingly killing" a victim are separate counts for each victim -- and that's why he got 6 murder charges.
Simone and her family are from the Columbus, Ohio area.
24-year-old Biles-Thomas is still being held in Georgia, but will be extradited to Ohio ahead of his arraignment on Sept. 13.