Alrighty, since Watchman is finally in on this, investigations by Anthony Stark would reveal the following:
The parts that made up the Hitlerbot were stolen from the Louisiana branch of Stark Industries. Also stolen in that attack was a ghostbuster style weapon originally designed for the Nightstalkers, and a neuro-repressor designed to suppress pain as an electronic alternative to chemical pain-killers.
All security camera footage was destroyed in the attack.
The attack left several people dead. One gaurd's body has not been found, a Dakota Clement. Clement was hired on the recommendation of Daniel Rand. She was a highly trained martial artist as well as possessing a great talent for channeling her Chi into enhanced physical abilities.
The facility was burned after being looted. Police haven't yet found the method used to start the fires. Should Iron Man investigate himself, he will, after reverse engineering the blaze's spread-pattern to its probable beginning, eventually find traces of ozone in the wreckage. The ozone implies a lightning attack of the sort used by Electro, Killer-Shrike, Green Goblin, and a few other villains.
Should anyone be curious about the Hydra agents who tried to help the Hitlerbot, Nick Fury will say that Hydra has been mostly quiet lately. They were fighting some bunch called "The Horde" in Afghanistan, but have since given up and abandoned that country entirely.