The good guys with guns undoubtedly saved lives by dispatching a bad guy with a gun. You are focused on gun deaths, not murder. Your hpolophobia is your big problem.
No random shooter even has ever lasted longer than ten minutes. (
An innocent or two, and of course, the loony gun nut. Much better than an entire restaurant full of people killed by a loony gun nut.
most loony gun nuts could not even kill you if they did not have a gun. the question was, if the loony guy who walked around killing people WAS NOT ARMED, how many could he kill? in most cases, none.
as far as no mass shooting lasting 30 minutes, wrong again...remember columbine? the two crazed killers began shooting up their school at 11:19 am and it lasted 49 minutes until they committed suicide at 12:08pm.
they shot to death 12 students and a teacher- how many of their fellow students and teachers could they have killed with their bare hands? here is an article with the timeline-
11:19 a.m.: Shooting begins
At 11:19 a.m., 17-year-old Rachel Scott and her friend Richard Castaldo were having lunch and sitting on the grass next to the west entrance of the school. Klebold threw a pipe bomb towards the parking lot; the bomb only partially detonated, causing it to give off smoke. Castaldo thought it was no more than a crude senior prank. Likewise, several students during the incident first thought that they were watching a prank.[96][97]
A witness reported hearing "Go! Go!" before Klebold and Harris pulled their guns from beneath their trench coats and began shooting.[85] Scott was killed instantly when she was hit four times with rounds fired from Harris' carbine; one shot was to the left temple.[98] Castaldo was shot eight times in the chest, arm, and abdomen; he fell unconscious to the ground and was left paralyzed below the chest.[99]
12:08 pm: Suicides
After leaving the library, Harris and Klebold entered the science area, where they caused a fire in an empty storage closet. It was extinguished by a teacher who had hidden in an adjacent room.[citation needed] The gunmen then proceeded toward the south hallway, where they shot into an empty science room. At 11:44 a.m., they were captured on the school security cameras as they re-entered the cafeteria. The recording shows Harris kneeling on the landing and firing a single shot toward one of the propane bombs left in the cafeteria, in an unsuccessful attempt to detonate it.[131] As Klebold approached the propane bomb and examined it, Harris took a drink from one of the cups left behind. Klebold lit a Molotov cocktail and threw it at the propane bomb. About a minute later, the gallon of fuel attached to the bomb ignited, causing a fire that was extinguished by the fire sprinklers a few minutes later.[132] They left the cafeteria at 11:46.
After leaving the cafeteria, they returned to the main north and south hallways of the school and fired several shots into walls and ceilings as students and teachers hid in rooms. They walked through the south hallway into the main office before returning to the north hallway. At 11:56, they returned to the cafeteria, and briefly entered the school kitchen.[85] They returned up the staircase and into the south hallway at 12:00 p.m.[133]
They re-entered the library, which was empty of survivors except for the unconscious Patrick Ireland and the injured Lisa Kreutz. By 12:08, both gunmen had killed themselves. Harris sat down with his back to a bookshelf and fired his shotgun through the roof of his mouth; Klebold went down on his knees and shot himself in the left temple with his TEC-9. An article by The Rocky Mountain News stated that Patti Nielson overheard them shout "One! Two! Three!" in unison, just before a loud boom,[10] however Nielson claimed that she had never spoken with either of the writers of the article.
https://en.wikipedia.org/wiki/Columbine_High_School_massacre