Authorities have ruled out a crash as the cause of a Bethesda minivan fire last week in which a 45-year-old man was found dead, but they are still looking for clues as to what caused the mysterious blaze.

The body of Ebrima Sarr, who was known as E-Bru, was found just before 4 a.m. July 27 in the driver’s seat of a gold Kia minivan on the 5000 block of Bradley Boulevard at Arlington Road.