Russian charged with ` ` aggravated assault '' after writing ` ` K '' on a wall in Colosseum . Six - month prison sentence also handed down for vandalism . Staff at ancient museum say the incident has hurt conservation efforts .
Russian charged with `` aggravated damage '' after scrawling `` K '' on a wall in Colosseum . Four-month suspended sentence also handed down for vandalism . Staff at ancient monument say the damage has hurt conservation efforts .