Most probably, this mission unlocks after the completion of the game.
After you get there, listen to Batman’s commentary and activate theevidence scanner.
Start by scanning the corpse, thanks to which you will determine the victim’s identity.
You now need to start using the keys/triggers to manipulate the replay process and follow the red line.
This will allow you to determine the place that you should probably jump down in (the screenshot).
This is not the end, yet because you still need to arrestAndrew Carter, i.e.
the perpetrator of the murder.
you’re free to find him in the central part of thePark Rowdistrict.
Since Andrew is surrounded by several allies, it would be a good idea to plan on the attack.
After the fight proper starts, attack all of the enemies.
Andrew will admit to having committed the murder and the investigation will close.
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