Published Tuesday, 10 July 2012
Oisin Twomey, aged just 16 months, who died in the crash. (© PA)
According to the Irish Independent, there were already concerns for the wellbeing of the Polish man whose car ploughed head-on into the Twomey family's vehicle outside Plymouth on Friday.
A suicide note was found at the 20-year-old's Devon home by a friend who contacted police.
The young man was arrested at the scene of the crash, but died from his injuries after being rushed to hospital.
Con Twomey, 39, and his 36-year-old wife Elber from Co Cork - who had been holidaying in Devon - remain in a critical condition in hospital and can't be told about the deaths of their children until they are deemed medically fit.
Their 16-month-old son Oisin was air-lifted to hospital but died a short time later, while emergency surgery was carried out on five months pregnant Elber in an effort to save her unborn baby.
But despite the efforts of medical staff, the child didn't survive.
In a statement released by Devon and Cornwall Police, the couple's families spoke of their heartbreak and said their shock was still "so raw and heartfelt".
Con and Elber, devoted husband and wife, father and mother to Oisin - who was the light of their lives - are in the thoughts and prayers of everyone who knew them at this time," they added.
The couple had already planned to call their baby Elber Marie, but relatives said she had been "born an angel".
Vigils are being kept by the couple's bedsides in Derriford Hospital in Plymouth.