And so much for all the freepers that were sure it was a crazed ME terrorist...
There is nothing to rule that out yet. Why would he have "Ismail ax " written on his arm? For all we know, it's a terrorist cell. For all we know, he could be a member of an Islamic Asian-Malaysian jihadist group. We don't know-yet.
M. E. H. Ismail, The zeros of basic Bessel functions the functions $J_{\nu +ax}\left (x\right ) $ and the associated orthogonal polynomials. ..