Final answer:
The statement is true that in an active shooter event, your first action should be to protect yourself so that you can be capable of helping others, similar to safety protocols in other emergency situations like fires.
Step-by-step explanation:
According to the Window of Life, the first action you should take during an active shooter event is indeed to protect yourself so you are able to help others. This assertion is true. Just as in the case of a fire where firefighters ensure their own safety before saving others, during an active shooter event, self-protection is crucial. If individuals do not protect themselves first, they may become victims and thereby unable to assist others. Observing bystanders and notifying authorities if unable to help directly are also critical steps in ensuring safety and support for all involved.