What a terrible waste of one's life, but if one truly believes in 'martyrdom', and swathes of virgins in heaven, then I imagine it's a good way to go.
In his case, Sudesh Amman wished to die a martyr; he was awarded the dying bit, but as a 'martyr' I'm not sure. Luckily on this occasion the two people he attacked are OK. The only one to die was the misguided religious fanatic who wished to show his god what a wonderful person he was.
Well, I know it's too late, but may I assure you, Mr Amman, that your non-existent god would think you're a total plonker; and would be ashamed of your action. In fact he might even think you're better off dead; you bring disgrace to the whole Muslim world.