From a utilitarian point of view I will consider several courses of action to ensure safety and prevent further harm. The most important action would be to activate emergency relief and ensure the safety of the people already saved, paying particular attention to the sick child. After activating the emergency rescue team, assign tasks according to their capabilities, such as asking for additional help, taking care of the sick child, finding another alternative way to escape from the roof. Meanwhile, implement an action plan together with Doctor John to save the survivors inside the building based on the assessment without causing further causes