[icebraining]

I would hope the standard for possession is higher than "WTF is this? [delete]"

Well, according to the linked article, the guy was sending the picture, not receiving it.

[saalweachter]

I would still hope that "their email account sent an image" is only sufficient to start an investigation and not end it. Email accounts can be broken into, many people have access to the same computer, etc etc.