A woman signs a cross as a child looks on at a makeshift memorial by the mall where several people were killed in Saturday’s mass shooting, Monday, May 8, 2023, in Allen, Texas. (AP Photo/Tony Gutierrez) — © Tony Gutierrez A gunman with neo-Nazi leanings who killed eight people at a suburban Dallas shopping centre took eight legally purchased guns to the scene, apparently chose his victims randomly and was shot dead by police within four minutes, authorities have said. The Allen police officer who shot and killed 33-year-old Mauricio Garcia, ending Saturday’s attack, acted heroically and saved “countless lives”...