NEWS.com.au | Robert Whitwell showed granddaughter Brittney Jade Dwyer family photos moments before she stabbed him to death NEWS.com.au AN HOUR after helping her friend stab her grandfather to death, Bernadette Burns made a telling Facebook post. Meagan Dillon. The AdvertiserSeptember 12, 20176:51am. SEVEN NEWS: Robert Whitwell's family speak outside court0:59. SEVEN NEWS: ... Woman looked at family photos with Adelaide grandfather before fatally stabbing him |