It may only be obvious people who watch the show, but to others this appears like an effigy of a child hanging. The doll's clothing is not distinctive enough to look like it's "from" anything. Suicide prevention teaches the rest of us who are left behind by suicides that depictions of hanging can shock us into memories of grief and loss. These are things that are really important to keep in mind when putting out decorations on a public street. People with antisocial personality disorder already know this and get a thrill from stoking a negative reaction in bystanders. Halloween seems to bring out the worst in some people.