A Mexican national charged with killing three people in Missouri in early November was released from a New Jersey county jail in 2017, despite being the subject an active immigration detention request, federal authorities said Friday. Luis Perez, 23, allegedly killed two of his ex-roommates in Springfield, Missouri, on Nov. 1 and then, a day later, shot and killed a woman who had accompanied him to the first two murders. Perez had been kicked out of his apartment by the roommates, Steven Marler, 38, and Aaron Hampton, 23, The Associated Press reported, citing a Springfield police probable cause affidavit. The...