In the deleted scenes, even though they are not technically "canon"
So with that and the fact that they touched on Extremis in the Agents of S.H.I.E.L.D. pilot could it be that Killian could be part of the Rising Tide? Is this Rising Tide something from the comics or soley a Whedon creation? I thought they said that this show will tie in loosely with the MCU. So it must be connected somehow. I would also assume that the doctors in the show were some rogue doctors who worked for A.I.M. - either with Killian or Stark after he got their files. I would go more with the former because I would assume Tony would keep all of it to himself so it wouldn't fall into the wrong hands.