What makes you think he is still alive?
Read Kabar's excerpt; post # 8.
I think hes still alive. Three reasons. First, no one had any reason to cover up his death. Second even so, they want you to believe hes dead in order to persuade you to give up looking for him. Third, he disappeared at a very convenient time for Brennan. I doubt that his death would be that convenient but certain his disappearance might. And other reason come to think of is that its said he has a habit of disappearing. Apparently hes done it before.