Implication of sabotage adds intrigue to SpaceX investigation, Washington Post
"The long-running feud between Elon Musk's space company and its fierce competitor United Launch Alliance took a bizarre twist this month when a SpaceX employee visited its facilities at Cape Canaveral, Fla., and asked for access to the roof of one of ULA's buildings. ... The building, which had been used to refurbish rocket motors known as the SMARF, is just more than a mile away from the launchpad and has a clear line of sight to it. A representative from ULA ultimately denied the SpaceX employee access to the roof and instead called Air Force investigators, who inspected the roof and didn't find anything connecting it to the rocket explosion, the officials said."