What is the religious ruling regarding someone who steals a woman's pictures and threatens her husband with publishing them in exchange for money?

This act is reprehensible, unjust, and an assault, and its perpetrator incurs a clear sin, as Allah the Almighty says: "And those who harm believing men and believing women for [something] other than what they have earned have certainly borne a slander and a clear sin." There is no specific prescribed punishment (Hadd) for it, but the ruler may inflict a discretionary punishment (Ta'zeer) upon him to deter him and others like him. Ta'zeer is a punishment not specifically defined by Sharia, whereas Hadd is a punishment specifically defined by Sharia.