Authorities investigating the Texas mass shooting recovered several firearms inside gunman Mauricio Garcia’s vehicle — as well as three boxes of ammunition, a tactical vest, a holstered knife and a trove of other items inside his motel room. The 33-year-old killer was staying at the Budget Suites of America on North Stemmons Freeway in Dallas at the time of his deadly attack, which left eight people dead and seven injured, according to a search warrant cited by WFAA. Investigators found several handguns, rifles and ammunition inside his 2014 Dodge Charger at the scene of the shooting, the news outlet reported....