Whether you think Luigi Mangione is guilty or innocent or a hero he is currently being held in jail with no bail so he can’t access the internet to post, create anything to social media.
Any of his social media accounts most likely have been suspended like with any person who is accused of committing a heinous crime(s) or a crime(s) that is gaining popularity due to the crime(s) they have been accused of committing.
Unfortunately when the suspect’s account(s) is suspended and news outlets do not post what was the suspect’s account(s) this leave the path open for bad actors to take advantage of this opportunity to intentionally deceive the public for different reasons by impersonating the suspect.
If you see any socal Mensa account saying this is Luigi Mangione, it is not the guy as anyone in a correction facility or jail the use of any electronic devices is prohibited