Based on the clue 'blood will flow if this predator gets among the ca...', what is the answer?

Based on the clue 'blood returns to the heart from the head neck by ...', what is the answer? Based on the clue 'blood spatter says the guy killed paris then himse...', what is the answer? Based on the clue 'blood tests that measure vitamin b12 levels are us...', what is the answer? What is associated with: blood wedding author federico garcia lorca was executed by nationalists in this country in 193… Based on the clue 'bloody bill anderson was the most vicious member o...', what is the answer? Based on the clue 'bloody day in a u2 song title', what is the answer? What is associated with: bloody mary was the girl the tonys loved in 1950 when juanita hall won for playing her in this… Based on the clue 'bloody romanian prince known as the impaler', what is the answer?