By definition, a Black Hole is Gravitationally closed. In the event that a stray photon, velocity "c", were to venture skyward within the confines of the Black Holes, event horizon, its velocity , it would rapidly decelerate and it would reverse its direction and follow a route to possibly permanent entrapment. However there is one possible avenue of escape.
Q; How do you open a gravitationally closed black hole.
A; You transform the Black Hole into a Torus.
To accomplish this formidable task, you proceed to disrupt its event horizon, with two similarly sized Black Holes. We then have a triple triangular collision, which following the primary impact, will form a Pawnbroker Sign configured "assembly".
Each Black Hole will sacrifice approximately, a 120 degree sector of its (360 degree) spherical event horizon, to form, an internal event horizon. We now have a " Pawnbroker configured assembly,, which is (very) rapidly morphing to equilibrium, and that equilibrium is a torus. Like a huge auto tyre.
This "auto tyre" shaped torus, has a unique characteristic. It possesses two event horizons. One internal and one external. These however are located both on the outer and inner zones of the torus, and they therefore, merge into each other. They form, an Internal / External Event Horizon Continuum. This is the event Horizon of a Black Torus.
As this new body continues to morph to gravitational equilibrium, the internal event horizon "sectors" become smaller, and therefore the opposite zones of the internal event horizons interfere and negate each other. This triggers core collapse, and jetting is initiated.
Black Holes dont jet.. Only Black Toruses Jet twin jets.
Kevin Wilson