Relatives of late nurse Jacintha Saldanha, son Junal Saldanha (L), husband, Benedict Barboza (C) and daughter Lisha Saldanha (R) arrive at Westminster Cathedral in central London ahead of a service of Thanksgiving for the life of Jacintha Saldanha on December 15, 2012.  Indian-born nurse Jacintha Saldanha, 46, was found hanged a week ago, days after taking a call at