They were trapped in a basement. At least 16 people are dead after several masked men reportedly threw firebombs into an underground restaurant in a central Cairo nightclub. Grey smoke billowed from the venue’s doorway, blocking the entrance as those inside died inhaling the fatal fumes. Early reports point to varying culprits: Some accuse a disgruntled ex-employee, while others blame a group that got in a fight with staff members earlier in the evening. Now authorities must catch the masked men, all of whom remain at large.