. >> pelley: veteran vatican correspondent alan pizzey. alan, thanks very much. this sunday, palm sunday, we're going to talk with some people who know pope francis best, the pope's old friends, and president obama on his meeting with francis, all of that this sunday on "60 minutes." in south africa, oscar pistorius was hammered fair third day about the night he shot and killed his girlfriend. pistorius is the double amputee pistorius is the double amputee olympian who ran on carbon blades. there was an audio feed of his testimony, and here's debora patta. >> reporter: chief prosecutor gerrie nel tore into oscar pistorius again, challenging his story that he had mistaken reeva steenkamp for a burglar. his fate will be determined by this judge, referred to as my lady, as is south african custom. he said he found it inconceivable if pistorius feared an intruder he would have checked that steenkamp was safe before he reached for his gun. >> did she scream at all while you shot her four times? >> are you sure, mr. pistorius, that reeva did not scream after the first