Russians setter competed in Crufts on Thursday and came second in class . But when the dog returned to Belgium it collapsed and died on Friday . Tests found that Jagger had eaten cubed beef laced with toxins . Owner Dee Milligan-Bott thinks intended victim was four-year-old Noodle . Identical looking dogs switched places where entrants sit during show . Jagger died in arms of joint owner Alexandra Lauwers at Belgium home .
Irish setter competed in Crufts on Thursday and came second in class . But when the dog returned to Belgium it collapsed and died on Friday . Tests found that Jagger had eaten cubed beef laced with toxins . Owner Dee Milligan-Bott thinks intended victim was four-year-old Noodle . Identical looking dogs switched places where entrants sit during show . Jagger died in arms of joint owner Alexandra Lauwers at Belgium home .