[schamp]

Does anyone know the best way to remove fingerprint powder from painted walls and door frames?
It's a long story with lots of stuff you don't want to see. Rental unit and renter got himself dead (with help). Law enforcement powdered everything. Family of dead guy doesn't want his stuff or to help clean up. Thinking of getting a dumpster and then starting the clean up and painting.
Thanks in advance for ideas. schamp