Thousand Oaks gunman was a Marine veteran which are usually visited the scene of the shooting
( CNN) Back in April, detectives in Thousand Oaks, California, responded to a disturbance at the home where Ian David Long lived.
A mental health specialist with the crisis crew met with him and felt he might be suffering from post-traumatic stress disease. But after been talking to him, they decided not to detain him under laws that allow for the temporary imprisonment
of the persons with psychiatric issues.
Seven months later, men swarmed his home again for a quite different conclude: a mass shooting.