This is the kind of stuff that led him to kill coworkers:
“The watermelon would appear, then disappear, then appear and disappear again … only to appear yet again. This was not an innocent incident. The watermelon was placed in a strategic location where it would be visible to newsroom employees (and others) entering and exiting the building. It appeared after a meeting during which ‘watermelon’ comments were discussed.”
He says the watermelon was part of “a carefully orchestrated effort by the photography staff to oust me – a conspiracy.”
Sounds like the hallmarks of paranoia, which goes hand in hand with a few different mental issues.