Twenty-four bodies were found at the scene after the head-on collision during rush hour Friday in the northwest Los Angeles suburb . NEW : California Public Safety Commission passed ban Thursday . Phone records show engineer texting during work hours on night of accident . Engineer Robert Sanchez was among 25 people killed in Friday 's crash . Investigators determined the brakes on train he was on were not applied .
NEW : California Public Safety Commission passed ban Thursday . Phone records show engineer texting during work hours on night of accident . Engineer Robert Sanchez was among 25 people killed in Friday 's crash . Investigators determined the brakes on train he was on were not applied .