Mentally ill outpatient Merrick Seaman has been jailed for eight years for sexually attacking a five-year-old girl as she played outside.Seaman, who suffers from schizophrenia and other mental illnesses, preyed on the young girl who was lagging behind while playing with her cousin and sister.The 25-year-old was an outpatient at the Mid-Atlantic Wellness Institute (MWI) at the time of the assault in July 2010.Chief Justice Richard Ground said he had an “apparent sexual obsession” as he sentenced him at Supreme Court this afternoon.Seaman of Park Hill, Warwick, remained motionless as Chief Justice Ground said he had “remained fixated and determined” to carry out the attack by taking the girl to a secluded place.He was told: “I regard these as very serious offences…There is no real mitigation and you have shown no real remorse.”Seaman was convicted of two counts of sexual exploitation of a young person by a jury earlier this year.He briefly addressed the court today to say: “I want to apologise to everyone in court. I am really sorry for what happened.“I wish I had the power to control myself. I wish it never happened.”The court had previously heard how MWI doctors “could do no more” for Seaman, who had been diagnosed with mental health issues at just five years old. He carried out the sex attack when he was not showing any psychotic symptoms and had been stabilised with medication.Chief Justice Ground suggested Seaman would also need “continued supervision” when he left prison.