They are lower in general than women (in USA it was 2.0 per 100k for transwomen+transmen of all colors versus 2.1 per 100k for women), and black transwoman are comparable to black women death rates (I don't remember numbers, but it was around 4.0-5.0, and if remove black transwomen from all statistics, rest transwomen+transmen have 1.7 for both combined, so they are the safest demographics of all). And most transwomen deaths are from prostitution. In UK on average it was one transgender killed per year. So as one article said, if 2 or 3 transgenders will be killed in one year it will be doubled or trippled death rate.

There were few articles and researches about it, debunking this myth. As it seems like transgender people killed more people than were killed themselves.

Same with suicide rates, both transwomen+transmen combined rates are slightly above than women rates, and much lower than gay or lesbian suicide rates.

Can't find research I was reading, but seems there a lot of info on it on different sites: https://www.channel4.com/news/factcheck/factcheck-how-many-trans-people-murdered-uk