Continuity mistake: When Dalton rips the guy's throat out, he wipes his hand on his pants and no blood is on his hand or pants, the next cut shows him looking at his hand full of blood.
Continuity mistake: After Jimmy's body is fished out of the pond by Doc, his eyes are open, but they are closed in the next shot.
Answer: As we see throughout the film, Dalton is not confrontational, and always takes the path of least violence. He wouldn't confront them, he would wait for them to attack him.