“…had a history of mental illness.”
Definitely doesn’t help witness or suspect credibility.
“also known as…”
Not necessarily. Professors can also be eccentric, regardless of monetary status.
Y’know, I was waiting for this one. As someone who has a history of mental illness, I question why it’s any more of a pejorative term than “a history of diabetes”, other than because of popular media stereotypes of mental illness as somehow evil, criminal or degenerate.
Not fit for viewing.
“in a state of advanced decomposition”
I shouldn’t be laughing at this but you really cracked me up. Is it 1986 again? Kudos, good sir, kudos!
Me, too. I only hope I don’t end up in a front page story someday…“the body of the elderly recluse was found, gnawed by her many cats, after neighbors reported a bad odor…”
Many badasses around here resort to shooting or stabbing other badasses who sell them imitation drugs, give them the stinkeye, or are involved in one of those mysterious unspecified ‘long-running disputes’. An alarming number, though, are:
“transported to the hospital for treatment after being shot/stabbed in the buttocks”.
Now, your run- of- the- mill cheap thief, say, a purse snatcher, is often chased down by the police:
"police tracked the suspect, following his footprints in the snow, to a house they entered and searched. The police apprehended the suspect hiding: (pick one)
- in a closet among the coats
- under a pile of dirty laundry
- under his momma’s bed "
Dude, check your Private Message Mailbox. 
“…authorities had to remove a wall to remove the half-ton-plus woman…”
“…the YouTube video of the embarrassing incident garnered over a million hits in two days…”
“Recovering/in recovery”
“In stable condition”
“Former reality TV star”
In a similar vein to the OP’s “known to police” I sometimes see ER notes describing a patient as “well known to ER staff”. Almost always indicates that the patient will be complicated either medically or socially.
“An entomology expert was called in to establish the time of death”.
Wanted in connection…
Last seen…
“widely distributed remains”
“suspected cult leader”
“Winner of the Eurovison Song Contest”
Valete,
Vox Imperatoris
“known cannibal”
I didn’t see this one the first time. So true. 
Valete,
Vox Imperatoris
“Closed-casket funeral”
(if the decedent is not of a group who doesn’t do the open-casket thing)
And in many cases, “entrepreneur” is most definitely not a compliment.
In connection with a police search of your home:
“refrigerator full of eyeballs”
“4 partially consumed human torsos”
“pyramid of human skulls”
“extensive NKOTB record collection”