No, it’s not sensationalized. White guys are usually the perps in ANY given mass murder OR serial killings. It’s just the truth.
Black guys usually for regular murders and other crimes.
This is US. World-wide if anything massively blows up, probably a Moslem, usually of the Arab variety.
We’re not supposed to deal in stereotypes, but there’s a reason for them. Preponderance of experience.
A notable exception is the DC sniper killers.