Nigeria 'terror mastermind' appeals conviction by South African court
![Nigeria 'terror mastermind' appeals conviction by South African court](http://www.timeslive.co.za/incoming/2015/03/28/henry-okah.jpg/ALTERNATES/crop_80x80/Henry+Okah.JPG)
A Nigerian jailed in Johannesburg for a series of terror attacks in his homeland on Wednesday appealed his conviction, challenging South Africa's right to try him, his lawyer said.