I have a post with most of the info,
But in summary he was mad at Tankmanz for pointing out his alt account. So Frank harassed him, said slurs in which he cannot reclaim, sent death wishes, and even made a killing animation of him. He also said over sexual things along with a sexual threat that could can be considered pedophilic, as Tank is 12 and Frank is 16. There’s also a possibility he drew cp of himself and tank.
Frank also stole Keyy’s art style without permission or credit, copied her oc’s with a few alters, made an account completely stealing one if her oc’s, and also basically said he wanted her to die.
There’s also a possibility he has been in a relationship with a 10yr old, however the whole situation was messy and difficult to understand.