How did Candyman know that his plan would work? SPOILER
Basically the kids now think she is Candyman. Either because the one kid though so and told the rest, or Candyman brainwashed the kids into thinking so by rewriting history with Helen, like with the graffiti on the wall and stuff.
However, the kids can hear a crying baby in the pile of trash, and decide to burn the baby along with her. Why did they think that a crying baby was okay to collateral damage, to burn alive, just to get the suspected killer?
And how did Candyman know that she would carry the hook with her into the trash, instead of maybe dropping it before going outside? Then the kids wouldn't have suspected her.
If he is psychic and was able to foresee that she would do this, how could he not foresee that she would stab him and get away then?