I just want to make sure what I know is correct. Let me explain and if there is anything wrong (any simple detail) with what I said, please, correct me.
When the particle crosses the event horizon, it falls off to the black hole with almost the speed of light. However, the space near the black hole is almost completely vacuumed, its shape will not be altered. When particle sucked into a black hole, the particle divide into the matter and antimatter. Antimatter is sucked into the black hole, causing pair annihilation, emitting gamma ray and slightly losing its mass, and evaporate. Matter, however, is emitted outside, just like I spit the watermelon seeds when I eat watermelon. Particles that are emitted are radiation that only contains heat but no information. Because the information is stored upon the surface of the black hole, we are not able to gather up the information of the particle back. This theory automatically disproved the white hole and wormhole theory, which was shown in the movie, Interstellar.