kEiThZ
Superstar
Not sure how believable this is:
Russian agents’ threat to family made Prigozhin call off Moscow advance
Details offer clue as to why Wagner Group abandoned coup attempt that revealed ‘real cracks’ in Putin’s authoritywww.telegraph.co.uk
On one hand, it's not exactly hard to imagine that Putin will do this; on the other, it is hard to imagine Prigozhin didn't anticipate it.
AoD
There's a running theory that Prighozin thought of this as a way that threaten and extract concessions. Didn't anticipate how the whole thing would turn out and be seen.