Once you lose your vertical stabilizer, any pitch control is gone. Here, from my friend at Airborne, from Avsig:
"Looks like the vertical stabilizer was found some distance from the fuselage. With an engine out (missing) and no vertical stab it's not surprising that they lost control. What I want to know now is how the vertical stab became detached. All I can think of is the departing engine might have hit the vertical stabilizer but the pictures of the stab didn't show any signs of such an impact."