心狠手辣

tā zhè ge rén xīn hěn shǒu là shén me shì dōu zuò de chū lái

他这个人心狠手辣，什么事都做得出来。

He is vicious and ruthless and there is nothing he wouldn't do.

tā bàn shì biàn de tóng tā zǔ fù yī yàng xīn hěn shǒu là

他办事变得同他祖父一样心狠手辣。

He developed into the ruthless operator his grandfather had been.