49er death still a mystery

Thomas Herrion dies after football game[*1] in Denver:

Herrion was on the field Saturday for the 49ers’ final possession. He played left guard on a 14-play, 91-yard drive that ended with a San Francisco touchdown with 2 seconds remaining.

A video review of the drive revealed Herrion did not show visible signs of trouble. He blocked Broncos linebacker Terry Pierce on the final play of the drive, a 23-yard touchdown run by reserve quarterback Cody Pickett.