Yeah, he was caught red handed with that evidence dump.
The only other high profile case I can think of where a killer has done something quite that stupid, is the Stephen Grant case.
He murdered his wife, dismembered her body, and dumped her in a wooded area.
When he heard that law enforcement was going to be conducting a search in the location where he dumped her remains, he returned and retrieved her torso, placing it in a box in his garage.
A search warrant led to its discovery, and his conviction.
FD wasn’t quite that dumb, but he’s not far off.