Moment Uvalde cops RESTRAINED colleague, whose daughter was one of 22 dead, from taking down school shooter, before 17 of them ran away from gunfire
· Footage of the Uvalde police response to the shooting was leaked on Tuesday
· It shows how Salvador Ramos, 18, sauntered through the halls at Robb Elementary School carrying an AR-15 as a teacher called for help
· He then walked into two classrooms and fired for two and a half minutes, shooting off 100 rounds
· The new video shows Sheriff's Deputy Felix Rubio in the hallway, in tears being held back by fellow officers, feet away from where his 10-year-old daughter Lexi was shot dead
· The first officers arrived three minutes later, but stood back, with one seen checking his cellphone
· Nothing happens until Border Patrol agents ran to the classrooms and began firing at Ramos, killing him
· Two teachers and 19 children were killed in the May 24 massacre