Mark Davis was one of about 100 people who attended the funeral services for Tina Tintor on Thursday ... paying respects to the woman who died in a car crash that authorities say his former player, Henry Ruggs, caused.
The Las Vegas Raiders owner showed up to the somber ceremony in a black suit, white-collared shirt and a tie ... and sat in a pew at the local church where the services for Tintor went down.
Davis stayed for the entire hour-long event .