A man from Holden accused of using Facebook to try to lure girls into sending nude photos of themselves to him pleaded guilty Thursday to sexual abuse of a minor.
21-year-old Allan Richmond is due to be sentenced next month.
Police started investigating him last spring and charged him with sexual exploitation of a minor involving two girls.
Police say after that, they discovered two more victims, both about 14-years-old, and charged him again.
Richmond admitted to sexually abusing one of those girls.
Deputy District Attorney Mike Roberts says Richmond is expected to plead guilty next month to lesser charges of possession of sexually explicit material, in exchange for six months in jail.