"Police quoted witnesses who saw a man walking into the clinic with a paper bag, which he put on the floor, right next to a heater by the reception desk, and ki

"Police quoted witnesses who saw a man walking into the clinic with a paper bag, which he put on the floor, right next to a heater by the reception desk, and kicked it. Liquid poured out, caught fire and the whole floor was in flames and smoke." Don't really need to be an expert in starting fires.