Roughly six months ago, Ever Valles was arrested by Denver police on charges of illegal possession of a weapon and vehicle theft. The suspect was reportedly flagged by Immigration and Customs Enforcement (ICE) as an “immigration enforcement priority," given his known gang affiliation. A detainer request was put on Valles, asking the city of Denver, a so-called “sanctuary city” to notify them before he was released, so they could take him into custody. However, Denver released Valles December 20, and ICE claims they were not properly notified. Almost two months later, tragedy struck. On February 17, Valles was charged with first-degree...