From this RawStory.com article:
https://www.cnn.com/2019/11/05/americas/mormons-attacked-us-mexico-border/index.html
https://news.yahoo.com/trump-mexico-cartels-mormons-killed-ambush-145807595.html
https://www.nytimes.com/reuters/2019/11/05/world/americas/05reuters-mexico-violence-president.html
Not that this necessarily has anything to do with what happened, but Trump's speedy and authoritative response to the murder of these Mormons may bide well for his previously low popularity rate among the religious group of voters.
God bless and watch over this family and all affected