A PORTRAIT of Sabina Rose O’Donnell’s alleged killer emerged in a Philadelphia courtroom Monday as a forensic psychologist explained the conclusions from a battery of tests he administered to Donte Johnson, who is on trial in the 2010 rape and murder of the Northern Liberties waitress. Gerald Cooke, the final defense witness, who was paid more than $9,300 in taxpayer money for his services, testified via video recorded last week that Johnson, 20, was likely born withbrain damage, the origin of which is unknown. His mother was 16 when he was born, and his father factored little in his life due to being in and out of jail, Cooke said.
