Heine indirectly killed himself so you could say that he indirectly commited suicide by zoning out on the battlefield. He is a skilled enough pilot to get a prototype unit and being a member of Faith. He is skilled enough to not zone out on the battlefield, okey he got suprised but not enough to make him zone out.

You could link this back to Neo if you want. Neo indirectly killed Heine becuase he sent Stellar out into battle. Auel and Sting indirectly contributed becuase they were involved in stealing the Gundams.

Do you get my point?