Then again it could have been a heart attack, or flight control failure, or engine failure, or, or, or - there is not enough information to draw any conclusions or speculations and it is far too early to compare this to any other crash based on the information provided by the NTSB.
The fact they are looking at the engines means nothing at such an early stage, even though an engine failure with speed decay below VMCA is a probable outcome.
I have to ask the OP whether he is willing to independently verify the credentials of any responses he gets prior to publication considering he is asking on a forum where Microsoft flight simulator users have claimed to be "experienced pilots" for similar posts in the past.