by I binged watched True Crime shows and documentaries about Murderers and serial killers. I tried to check if they have social media accounts before they got killed or arrested. Some of them have normal accounts while others shows early warning signs.
Usually social networks and Video platforms deletes their content but the content of these people stayed online or got reuploaded.
The Youtube shooter
Nasim Najafi Aghdam was a Youtuber who got demonetized by Youtube, for years Youtube is her only source of income. All she does is make dance videos and also music videos of her original songs. When The Paul Brothers made a lot of controversy, Advertisers demands to have offensive Youtube channels to be demonetized. Her channel is not offensive, she just dances but yeah Susan the Youtube CEO, demonetized innocent small channels instead of the bigger channels that caused the controversy. Getting demonetized snaps her sanity, so she attacks Youtube headquarters and shot 4 people.
She got shot to death before she got arrested.
This is her last social media post before she attacked the Youtube headquarters.
Mr. Anime
Mr. Anime is one of the earliest Youtubers, he makes anime reviews and his channel got monetized. His Youtube channel was doing well but people don't know what happens behind the scenes. He seemed to have a problem with his family and one day he snapped and killed his family. This is his last Youtube upload.
La Monalisa
La Monalisa is one of the early family Youtubers. She was a teen mom who lives with her boyfriend and she was pregnant. Youtubing made them enough money to move out from their parents.
She is not a murderous person with ill intentions. What happened is an accident. Her boyfriend got an idea that if she shut him with a gun while holding multiple phone directories, He will not die because the thick books will protect him from the bullet. She doesn't want to do it but her boyfriend told her to trust him that this will give him lots of views and be viral. She agreed to do it because she really thought those books can stop a bullet.
Her boyfriend died immediately. The bullet is able to pass through the books.
Luka Magnotta
When he was a child, he was overweight and he was bullied at school. When he lost the weight as a teen, People begun complimenting his looks. So he decided to become an actor or a model. He auditioned to multiple agencies and studios but he doesn't get cast. He wanted to be famous but it was too elusive for him. He was auditioning non stop but no one casts him, he continued auditions until he reach the age 30s.
Luka even tried to dabble in Porn but no one books him. The failure of his dreams takes a toll on his sanity.
He wants to make an illusion that he is famous, so he made multiple facebook fanpages and Youtube fan pages of him. He have multiple accounts and pretends to be fans and so people will comment on his videos and pictures.
This is one of the "Fan videos" he made so he can fool modelling agencies that he have fans.
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All the positive comments saying he is cool, sexy, beautiful etc... Are also him. He makes hundreds of accounts to praise himself.
He desperately wanted fame, So he ends up making snuff videos where he kills cats and puppies. the videos got viral because people wanted him arrested. He kept uploading those animal snuff videos because he loves attention. Then he ends up killing a person and upload the video. He decided to be a serial killer after realizing serial killers are written in history books. Thankfully he got arrested before he got his second human victim.
His success story is amazing! And like you say many influencers were not accepted by mainstream media. But they managed to find their "legitimate pot of gold". He could have found his too. This guy gets no mercy from me. 
