If a guy wants me to call him "she/her", that's a courtesy I'm under no obligation to extend. It depends on whether I'm inclined to do so. Axe murderers don't really incline me to extend them much courtesy. And it actually raises a valid point - police are now recording crimes by men as by women in cases like this. That's not the worst of things, but it does make a mockery of accurate statistics. And men are being housed in women's prisons also. But hey - at least the police and prison service aren't... edgy.
There's quite a few more than "literally 1 (one)", but what's your point? That I shouldn't say all trans people are violent axe murderers? Well guess what - nobody said that. There is, I think, a higher rate than the population average. In fact, more trans people have killed someone in the UK than trans people have been killed in the UK, but that doesn't say anything about any given trans person. As was said way back in this thread, you get two broad groups of MtF trans. There are the actual Gender Dysphoriacs. This typically manifests early in life and stereotypically these are your very feminine boys who like to dress as girls without it being a sexual thing. They typically also dress like normal women and try to fit in. The second MtF group are the autogynephiles. Men who get sexual gratification from indulging in a female identity. Typically they are very overtly sexual, usually aggressive and often dress very sluttily. Sadly, they are typically the most visible and political trans people. So what's your point? Other than to object to me not calling a psycopath by his preferred pronouns?