To the more than 300 people gathered at the corner of Mountain and Evergreen avenues in Monrovia, the man who died after he ran onto the 210 Freeway in Monrovia and was hit by an SUV now has a name.

The driver of a tractor-trailer involved in an accident Aug. 12 that killed three people on Florida’s Turnpike in St. Lucie County has been arrested on vehicular homicide charges and immigration viol...