Bruce Ashford has written a helpful article, about how Christians should respond to the shootings in Las Vegas

At Hope Fellowship, we grieve with those who are grieving in Las Vegas, and also are praying for those friends and loved ones who have been affected by this senseless act of evil.

Please pray for Grace Point Church and Pastor Ty Neal as they seek to minister to the hurting and those affected in their church. 
Pray for The Stream Church in Las Vegas and Pastor Kevin Scott. I went to seminary with Kevin, and Jen grew up in Cincinnati with him. He is a pastoral counselor in Las Vegas in addition to the Lead Pastor at their church.