Police believe they have snared a sex attacker who preyed on girls on Ching Ho Estate in Sheung Shui from May. The jobless man, 33, was arrested on Wednesday over an assault on a 12-year-old girl. Three other girls, aged 12 to 14, said they had been assaulted. The man was charged with wounding with intent and indecent assault yesterday. He appears at Fanling Court today.