Update: David Osborne was released in 2012 2005 Dangerous paedophile jailed for abusing three young children A paedophile has been jailed for abusing his own daughter and sexually assaulting two other youngsters. Belfast man David Osborne subjected his own daughter to years of sexual abuse over a six year period between 1997 and 2003. He started abusing her when she was just nine-years-old. During the trial, he was also found guilty of sexually assaulting two other young children. However police suspected that there could of been other victims. Osborne faced a total of 47 charges which he denied, forcing the young victims to give evidence in court against him.  The jury found him guilty on charges including rape, attempted rape, sexual assault, indecent assault and other sexual offences relating to the three children. He was sentenced to a total of 21-years, but because the individual sentences were concurrent, he was told he must serve a minimum of seven.