Not that I'd recommend speculating from photos, but to point out the obvious:
There are recognizable skid marks -- at the end of the slide, the aircraft turned 90 degrees to the direction of travel. In the process, the nose section broke off, and the left wing (pointing in the direction of travel), dipped down, sending the #1 pod on its way and causing a small fuel leak. There was no fire, and the passengers evacuated from the slightly lower side (towards the fuel leak). When the equipment arrived, they secured the site, evacuated the aircraft, then, when the TV crews showed up around, say, 12:01 pm, they applied flame retardant onto the spilled fuel.