Obviously any murder is a tragedy that should not have happened.
But for a transwoman in the UK to fear being killed by a man is irrational, in that it is an occurence that is vanishingly rare.
For example, there are no known instances of transwomen being murdered in the UK this year (I accept that it is possible that there are cases that have not been identified as such).
However, there were 137 people killed in work place accidents in 2016/17 according to the HSE whilst the Department of Transport recorded 1,710 road-related fatalities in the same period.
Meanwhile two women a week are killed by a current or former partner in England and Wales.
I know that fear is not rationale (we all know that a car accident is more likely than a plane accident, but can still feel nervous going along the runway) but suspect it is more accurate to say that transwomen fear male violence.
I would estimate half of my male friends have been involved in some form of violence (that I know of), in the form of fights outside a pub, muggings or racist assaults. That outnumbers my female friends. However, almost all of my female friends have experienced sexual harassment and I know a number have been raped. In contrast I know one male friend who was raped but otherwise most have been a bit perplexed and taken aback by #MeToo, as it is so far from their personal experience
The big elephant in this room, of course, is biology. Even in a 1:1 situation, the average man can easily outpower the average woman. This is not true of the average man and the average transwoman, particularly one who is not taking any hormones. Frankly, I wouldn't stand a chance against the vast majority of men, which makes me incredibly vulnerable.