The National Rifle Association has to this point been the wisest in controlling the topic. They sat back quietly as a community mourned. After four full days they came out and told us a comment will be coming on Friday - A full seven days post event. Pretty hard for the Brady's and other anti's to attack a message when you don't put it out there, and it makes those ranting NRA, NRA, NRA look stupid when the NRA is not publicly speaking.
In this day and age of the 24/7 news cycle, and instant replay on the internet the day or time does not matter. The has waited a historically accepted appropriate period of mourning before entering the fray, and they are doing it with appropriate separation from a major holiday and religious observation.
Now all that is to be seen is what they have to say. Since the DFL has tipped their hand by having everyone they control reading from the same script it should be an easy general statement.