Jacintha Saldanha's widower Ben Barboza (C) wipes a tear asher children Lisha (2nd R) and Junal (L) stand with MP Keith Vaz outside of Westminster Cathedral following a memorial service in London December 15, 2012. The family of a nurse who apparently committed suicide after taking a prank call at the hospital treating Prince William's pregnant wife Kate delivered a tearful tribute to her on Saturday, saying her death had left "an unfillable void". REUTERS/Toby Melville (BRITAIN - Tags: RELIGION POLITICS)