By Breaking Celebrity News Staff

George Zimmerman’s brother Robert Zimmerman Jr. told Piers Morgan Thursday night his brother was faced with a kill-or-be-killed scenario in his February 26 struggle with 17-year-old Trayvon Martin before he fatally shot him.

“He prevented his firearm from being taken from him and used against him -- and that's called saving your life,” Zimmerman Jr. told Morgan, a night after his father Robert Zimmerman told Fox’s Orlando outlet “that Trayvon Martin got on top of George and just started beating him.”