NY’s broken mental health laws let 14-year-old’s deranged alleged killer slip through the cracks despite ‘all kinds of red flags’

The saga of Waldo Mejia — who shouted “I’m with Satan!” in court after cops said he randomly plunged a knife into teen Caleb Rijos’ chest — shows the dire need to change the state’s involuntary commitment laws, pols and lawyers told The Post.