One of the most pernicious myths about police shootings is that officers shoot unarmed black men at an alarming rate, when in fact just 2% of the people who were killed by an officer were unarmed and black. Since the beginning of 2015, law enforcement officers across the country have actually killed 33 more unarmed white people than unarmed black people.
https://www.washingtonpost.com/graphics/investigations/polic...
https://policeviolencereport.org/
US police departments are not required to provide this information. It must be collected ad hoc by outside orgs.
Many reports will (I kid you not) list sickle cell disease as cause of death during a police stop.
Unfortunately that site shut down, someone else got the name, and it now redirects to RoBarGuns.com, a gun review and buying guides site.
You can still get the data from archive.org here [1]. That has all the 2020 shootings up through July 20th, and has links for prior years back to 2014, and the last month of 2013.
I remember a couple years ago going through the then previous year and picking something like 50 at random (via a random number generator) and looking into the details, but I don't remember if I specifically took note of armed vs. unarmed.
[1] https://web.archive.org/web/20200723033637/https://killedbyp...
Population: white 197M, black 40M. https://statisticalatlas.com/United-States/Race-and-Ethnicit...
Per-capita: close to 3 times as many black people shot. I couldn't find clear statistics for unarmed victims. Please post if they're much different.