History
Headlok was on loan from S.H.I.E.L.D.'s Psi Division along with Exodus in order to help Director Maria Hill to make telepathic contact with the newly discovered mutant Matthew Malloy in an effort to communicate and hopefully reason with him. Headlok acted as an anchor to allow Exodus to enter his mind but being as powerful as Matthew was caused a massive psionic backlash from his uncontrollable power which caused both men to suffer from nosebleeds and possible brain aneurysms.[1]
It is unknown if Headlok survived the attack, but since Exodus was mentioned by Rachel Grey when she also tried to make contact with Matthew too, it's a possibility he did.[2]