The phrase "alleged shooter" refers to someone accused of being the person responsible for shooting or firing a gun, but their guilt hasn't been proven yet in a court of law. Full definition
Borges, 15, was shot five times — in the lungs, abdomen and legs — as he held shut a door at Marjory Stoneman Douglas High School to prevent alleged shooter Nikolas Cruz from gunning down students inside. (abcnews.go.com)
Good Samaritans pointed responding officers toward the building where alleged shooter Rashun Robinson ran into. (dnainfo.com)
The article feature photos from the Instagram account of the actual alleged shooter, Nikolas Cruz. (sun-sentinel.com)