A serial sex attacker who targeted random women walking alone in the early hours of the morning has lost an appeal against his conviction. In a judgment delivered this morning the three-judge Court of Appeal dismissed all grounds, including a complaint that the offender was unlawfully detained by gardai following the final attack in which he grabbed a woman from behind while brandishing a knife. The 36-year-old, who can't be named for legal reasons, was convicted of offences for attacks on three women in the Clondalkin area of Dublin on September 11, 2011, September 3, 2015 and May 16, 2016. He was convicted of false imprisonment, sexual assault and assault causing harm in relation to the first two offences. His third victim, who was attacked in a laneway in broad daylight as she walked to a Luas stop on her way to work, struggled free and raised the alarm.