Is it too late to take photos if I already left the scene of the fall?

It is not necessarily too late, but you should act immediately. If possible, have a friend or family member return to the location to photograph the hazard, the surrounding area, and any warning signs or lack thereof. Conditions change rapidly; spills are mopped, and broken stairs are repaired. Even if the hazard is gone, photos of the general layout and nearby surveillance cameras are highly valuable. The Altman Law Firm can then quickly issue preservation letters to secure the remaining evidence.