Engine out
I happen to fly a Little in the Lear 35..
If on climb out an engine decides it doesn't want to work anymore, which ever one. Directional control is maintained through rudder only, not aileron.
I will be looking to immediately dump fuel, to get to max landing weight, if required. I will be certainly opening the cross flow valve to avoid an unbalanced fuel situation..
The 35 flies perfectly well on one engine. I see no reason why a well managed engine failure cannot be controlled and landed. There but for the grace of god go I..
My 02 cents.
I would not venture to say what happened to this unfortunate crew