Murderous

Daniel Perry murdered a man with premeditation

Daniel Perry repeatedly fantasized about and discussed killing BLM protesters in his private correspondence.

Daniel Perry discussing killing protesters

In the above passage from page 19 of the filing, Perry fantasizes about killing "rioters" outside his apartment complex, and then discusses in some detail the circumstances under which he would be legally allowed to do so.

Daniel Perry discussing killing protesters

In the passage from page 14 of the filing, Perry talks about travelling to a different city (Dallas) for the purpose of shooting "looters". This is remarkably similar to what he ended up doing in Austin.

Racist

Daniel Perry is a self-admitted racist

Daniel Perry consistently posted racist remarks and memes to social media, as well as in his personal communications.

Daniel Perry joking about a mother killing her child
        because their “first crush is a little black boy”

Page 12 of the filing contains messages from Perry's cell phone, including a meme (preumably this one) joking about a mother killing her daughter for having a crush on a Black child.

Daniel Perry calling Black Americans monkeys and zoo
        animals

Page 21 of the filing contains posts from Perry's Facebook page comparing Black Americans to “monkeys” and “animals at the zoo”.

Daniel Perry wanting to hunt Muslims

Page 8 of the filing contains Perry's conversations on the Native messaging app, with one message lamenting that “we can't get paid for hunting Muslims in Europe”.

Pedophile

Daniel Perry grooms minors

Daniel Perry has a history of attempting to sexually groom minors. The court filing stated that Perry (as a man well into his thirties) searched on Safari for, among other terms “good chats to meet young girls” and “good chats to meet young girls on kik”.

Pages 66-68 of the filing contain a transcription of a conversation he had over text with one such minor (referred to as “Yuno Iazuki”, an alias), of which I've included screenshots below (outlined in red).

Daniel Perry grooming a minor, who says “Ok so im 16 ill be 17 in 3 months u sure u want me”

Here Perry makes it clear he wants a "real long relationship", and is apparently unfazed by Iazuki saying that she's 16 years old.

Daniel Perry grooming a minor, saying that he should be her boyfriend

Shortly after Perry mentions a previous conversation with a minor, establishing that sexually grooming minors is a pattern of behavior for him. He then awkwardly suggests that he should be her boyfriend. Minor's phone number blurred for privacy.

Daniel Perry grooming a minor, where he says “I work in a field where I have to be careful and not lose my security clearance. Because with out it I lose my job”

Perry then clarifies that he has no moral issues with graphic communication with minors, his only concern is his security clearance and job as an Army Sergeant. The 16 year old then rejects Perry's advances and ends the conversation.