In Algonquin Park, Ontario on a canoe trip. Didn’t know anything about the attack until a German couple we met later in the day told us about it. Had no TV so didn’t really see images until we got back to the states a few days later.
I was at a hotel in McAllen TX getting ready to get some breakfast and waiting for a friend to pick me up to take me to the airport to fly back to Houston. Needless to say, that flight was cancelled, I ended up spending the night in Corpus Christi so I could drive my boss’s car back to Houston the next day. I think I cried all the way back to Houston.