Care to link to a source?
From Significance, right at the top: "(...) Black women and men and American Indian and Alaska Native women and men are significantly more likely than white women and men to be killed by police. Latino men are also more likely to be killed by police than are white men."
In any case, here's two links. One's from Drexel University, the other is a meta-composition of resources by an organization connected to the Kennedy School at Harvard. Educate yourself.
[1] https://drexel.edu/now/archive/2016/December/Black-Men-3-tim...
[2] https://journalistsresource.org/studies/government/criminal-...
In this study run by Harvard professor Roland Fryer, it was found that African-Americans are 20% less likely to be shot and proportionally more likely to see use-of-force against them.
https://www.nber.org/papers/w22399
I didn't find anything unbiased in my quick search on "likelihood of death during interaction."
The 2.5x number isn't really disputed, it is the reason for it & the policy that is proposed because of it that is contentious.