From a fairly old comic series caled "Liquid's Story", detailing Liquid's life before she became genocidal.

As such, this is pre-genocidal Suzan, before she was liquid and she had strength and abilities that surpassed her fathers.

And they're on a rooftop right now.

As for the "pre-genocidal" part, this is near-literally less than 10 minutes before she started killing people. She teleported Dingo away beforehand, though.