A mother who is believed to have killed herself and her three-year-old son after jumping in front of a train had made an attempt on her own life just months ago.
Donna Oettinger, 41, jumped into the path of an oncoming train at Riddlesdown station, near Croydon, with their son Zaki on Friday.
Her Egyptian husband Mohamed Nahr discovered that his wife, who had told him four months ago that she felt suicidal, had dragged their child in front of a speeding train after a friend told him to 'check the internet'.
He has today spoken out, asking: 'Why did she even think about something like this... he was only a baby'
Ms Oettinger started to suffer from depression last April when her Mr Nahr was not allowed to come and live in the UK because of Visa issues.
He told the Sun: 'I am never going to sleep. I am never going to eat. He was part of me. He was my world.'
A friend of Ms Oettinger said that the tragedy could have been avoided, adding that the mother had been let down by 'doctors and the NHS'.
The friend, who did not want to be named, told the Mirror that she had been to see a doctor up to 50 times since November to ask for help.
They added: 'She tried to commit suicide in December and she was in intensive care for two days.'
'Everyone was told she might die. We said she needed to go into a psychiatric hospital. Her mum begged two psychiatrists to put her away.'
Mr Nahr said he discovered what had happened when a friend called him to say there was 'bad news' and urged him to go on the internet, where he saw from online reports that his family had died.
He told The Sunday Times: 'I've lost my family. I've lost my son and I've lost my Donna.'
He said that when Ms Oettinger had told him that she was suicidal he had begged her to consider their son, but claimed she had said she would give their child to her mother and sister to care for Zaki.
He said that Ms Oettinger had become depressed after suffering a miscarriage in 2009 and two of her close friends who had battled cancer had passed away.