How to use "bleed" in a sentence

He uses something strange: not a knife but something long and thin, and he stabs them again and again, and they just bleed and bleed."

...He uses something strange: not a knife but something long and thin, and he stabs them again and again, and they just bleed and bleed.

But if you agitate the wound, you might tear a bruised vessel, and then you'll bleed to death."