Not omnipotence Professor

A terrible thing occurs that man is attacked and beaten to death. What is strange in this case is that they are beaten by man.
I am expecting Doctor Bishop to recall something he has done to find this killer. However, it is out of his reach. What he can do is to help Doctor Boo(?) to do experiment. That makes this series not all same. In Fringe S01E18,Z.F.T. comes up. And finally Bishop's ever coworker,William is said to be the leader of Z.F.T. The old unshown gay will finally come out.
What Doctor Boo does, to do experiment on his own body to find the solution risk of his life and in the end cause him his life, is very moving.