thank you so much for joining us tonight. remember you can watch the night cap again on saturdays at 11:00 p.m. eastern right here on msnbc. if you liked tonight, you will love it tomorrow. for tonight we re signing off. i wish you a very good night. from all of our colleagues across the networks of nbc news, thanks for staying up late with me. i ll see you at the end of monday. on october 1st, 2017 a uniquely american tragedy unfolded on a scale never before seen. in a matter of seconds a country music festival turned tragic. a storm of gunfire raining down on a crowd. he was shooting everybody and there was dead people everywhere. and i don t even know what was happening. it was just shooting randomly. reporter: in the end a massive loss of life and hundreds injured in the worse mass shooting in modern american history. the 2017 las vegas shooting was the worse mass shooting in modern american history. over the course of 10 minutes 58 people were killed, several h