my daughter sees folks who are "dead." Daily.
My highschool cross-country coach and five guys I work(ed) with all shot themselves in the head, and these people were among the most virtuous folks I have known. It is not all that unusual for squared-away people to do this type of thing, not that I recommend it necessarily.
As far as seeing dead people goes I have realized something very odd over the past couple years. When acquaintances are alive, I have always had great difficulty visualizing their faces. Now that I am at an age when friends/relatives are beginning to pass away, I have noticed that when they pass their immages start coming through crystal clear immediately after the event.
Sometimes their images start coming through before I receive news that they have passed. The local Priest doesn't think there is much to this, but I suspect it is evidence that these folks are still present out there in some form.