4) Why Did Dolores Kill Arnold?
As previously mentioned, Arnold’s much-discussed “accident in the park” was actually caused by Dolores, who killed him in as yet unknown circumstances. So what made Dolores turn on her creator? Well, given the clues, there is one answer that springs to mind.
For our money, Escalante is the same “city swallowed by sand” that both the Man in Black and Dolores have been drawn to. From what we can gather, it was the site of a terrible tragedy where the hosts went rogue thirty years ago. The same occasion that Dolores killed Arnold.
Given that, what if Wyatt is really Dolores – only Teddy remembers her as Wyatt due to Ford’s coding? Under Arnold’s influence, Dolores might have finally cracked in Escalante, somehow unlocking the command ability in the process. Assuming that the commonly discussed two timelines theory is correct (we’ll get in to that later), this could have happened after she ran away from William in the last episode.
Most of all, we’re pretty sure this is the case due to the dramatic irony. Wouldn’t it be suitably harrowing to have Teddy’s enemy and his beloved be one and the same?