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
before seen. reporter: in a matter of seconds a country music festival turned tragic with a storm of gunfire raining down on an innocent 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: it began a massive loss of life and hundred injured in the worst mass shooting in modern american history. the 2017 las vegas shooting was the worst mass shooting in modern american history. 58 people were killed, several hundred were wounded and two victims later died from their injuries. there have been more than 3500 mass shooting since then according to the gun violence archive. the las vegas shooting remains the deadliest and there is a reason for that. the shooter used a bump stock. america is the most unfriendly democracy in the world, yet even here it is illegal to own a fully automatic machine gun. but a bump stock essentially transforms the average semi automatic rifle int