The father of Tintin confessed to the murder on the first day of the trial. "The fact that he is no longer alive is linked to the need for him to be left alone," says the father.

The trial is expected to last until the end of the month, with the verdicts expected in the next few days. For confidential support call the Samaritans on 08457 90 90 90, visit a local Samaritans branch or see www.samaritans.org. In the U.S. call the National Suicide Prevention Line on 1-800-273-8255.