He is black. Not hard to say at all.
When no description is given, that is a perfectly obvious description. The perpetrator's name makes it 99% certain for a racial identification.
Why does it matter? Because it does. When you haven't got information or time to get information, your best option is to play the odds. Or follow the stereotypes. They have survival value. That is why we keep making them.
Ignore stereotypes at your own peril.
