“I don’t know what part the attorney played in this egregious lapse of good manners and common sense, but it gave an ambitious prosecutor a place to sink his teeth in deep.”
From what I’ve read, his own mother was either living there, or had lived in the same facility, and he told the blogger how to enter the place without being noticed.
Thus the conspiracy charge. An attorney providing somebody information on how to commit an illegal act is professional suicide. The bullet was an afterthought.