Catherine Johnstone, chief executive of the Samaritans, said the charity had been "overwhelmed" by the response following the death.

BBC: London Marathon death: Family tribute to Claire Squires

"It's important to understand that suicide is complex, " says Catherine Johnstone, chief executive of the Samaritans, a UK group that counsels people thinking of suicide.

CNN: Nurse death sparks outrage, casts glare on 'shock jocks'