they also are aware of what the son was posting. hours after the umpqua community college massacre, the mother of the 26-year-old gunman broke down. >> she was bawling. she was really upset. i can't blame her. i mean, this is insane. >> reporter: now there are new details about what she knew about her son's mental health and access to guns before he went on a rampage killing eight students and a teacher. a sery series of online posts reveal he had a developmental disorder on the autism spector and there were plenty of guns in the house. she boasted about her arsenal of weapons about state gun laws saying i keep two full mags in my block case. all have loaded mags. no one will drop by my house