is a cassity's guns weren't locked away but stashed near different doorways ready to use. at the railyard, cassidy first killed several coworkers in when building and then was seen on surveillance video calmly walking over to a second building where he murdered several more. cassity's father told our media partners he apologizes to the victims families for his son's unthinkable acts saying i don't think anything i could say could ease their grief. i'm really really very sorry. investigators still processing the crime scene. they say still no clear motive to the crime. cassity's father telling our media partners that he saw his son last week and there was no hint that anything was wrong. vta planning a public memorial to the victims sometimes in the future. >> a vigil was held last night for the victims of the vta shooting. a few dozen people attended the event at the, when victim was a member of the community. another vigil will be held later today. this one and union city. it begins at 5:00 p.m. the event was organized by local residents who want to show their solidarity.