The man from yesterday

It had happened while Neal Clark was still ramrod of the Circle C Ranch. He had ridden into Cascade City to see the gunsmith, and while he was there the Shelly gang attempted to hold up the bank. Neal rushed out of the shop and fired, repeatedly, killing Buck Shelly and his son, Luke. He may also have hit Ed Shelly, Buck's teenage son who was holding the horses. Ed escaped, but was believed to be mortally wounded. At least that's what Neal thought - until he received a letter from Ed declaring that he'd be back to settle the score.