zulekha, take it easy, first try and understand things.
people who travel international know that one way ticket is too expensive, so everyone just buys two way tickets. return date is open so you can travel anytime in say 6 months. people who are coming back permanently only they buy one way tickets. but people who do that generally resign from work, sell off things and plan to come back.
haneef just buys one way ticket, does not resign, does not sell off his stuff, it is kind of suspicious because all this happens as soon as news about his cousin flash in the media.
so think before you speak. just think. i am not saying he is guilty.