It's been more than a year since the shocking death of Vontae Davis ... but time hasn't come with answers, 'cause the medical examiner doesn't know what caused the former NFL star to die at just 35 years old.
TMZ Sports obtained the autopsy report from the Broward County Medical Examiner on Friday ... after Davis was found deceased by an assistant in his home gym in Southwest Ranches, FL, on April 1, 2024. The cause of death is listed as "undetermined.