The family of a Colombian man who is believed to have killed himself at a Heathrow immigration removal centre say he begged for help and was willing to leave the UK. Frank Ospina died on 25 March, within a month of being detained, while he was waiting to be deported. His family say that he had no existing mental health problems. The BBC has been investigating conditions inside immigration centres, at a time when the Government is taking a harder line on migrants. Documents have shown mounting strain on detainees because of the delays in processing their cases, and  also there was an incident in which a group of detainees tried to kill themselves three days after Mr Ospina's death. This news comes ahead of the publication of a report, due soon, into abusive behaviour by staff at the Brook House facility, a centre near Gatwick. A public inquiry was launched following a landmark undercover Panorama investigation in 2017: see