We need to avoid sharing unconfirmed information.
Nothing is confirmed and official until said by authoritative sources. An ISIS attack is not an ISIS attack until our police officers have said so.
Branding an incident as a terrorist attack only sows more fear, more panic, and it does not help — one conclusion leads to another, and who knows, at the end, someone may be tweeting the end of the world.
Even people who are in the area of the incident may not be credible. Their information may have been obtained thru hearsays circulating around. Who knows the authenticity of its source? If it is a firsthand experience, know that the person may be experiencing trauma and panic, and the information that he may give may not be as accurate as desired. During a heightened commotion, people inside the scene may be just as confused as people outside the scene, and no one can ever be so sure. It is not until everyone has calmed down, that the storm has passed, that one can intelligibly thresh out what one may know.
We pray. We express our concern. We wish those in the crossfire well. Afterwards, we donate. We send help. We volunteer. We may also speculate what really happened; we may also have theories of our own. However, in the meantime, at the height of the crisis, we help in keeping our fellow calm yet composed. We keep our facts verified while maintaining our vigilance.