After that, Michael made his way back towards the mansion, and just after a minute that he had left, came a group of people in a black hazmat suits that appeared at the scene of the battle.
Where this people quickly cleaned up the dead body of the hitman, and then the traces of battle, and quickly left the scene. Any traces of the battle before were thoroughly cleaned and that even the smallest blood splatter on the tree bark were cleaned. Everything literally returned to what it originally looked.
It was like the fight between Michael and the hitman didn't even happen at all.
And these group of people in hazmat suits are the clean up crew of the organization behind Michael and the others.