Posted on Sat, Sep. 02, 2006 Karr hires new lawyer in child porn case MARCUS WOHLSEN Associated Press SAN FRANCISCO - John Mark Karr, exonerated as a suspect in the slaying of JonBenet Ramsey, has asked a San Francisco lawyer to represent him as he awaits extradition to California to face child pornography charges. Robert M. Amparan is set to appear Tuesday in Sonoma County Superior Court to officially take over Karr's defense from the public defender's office, which has represented Karr in the case since it was first brought in 2001.