A forensic psychiatrist revealed Jordan Neely suffered from schizophrenic delusions and abused synthetic marijuana, two factors in increased violent behavior.

Tuesday marked the first full day of the defense's case in the trial of Daniel Penny, the Marine veteran charged in the chokehold death of Jordan Neely on board the subway last year.

Daniel Penny’s mom told Manhattan jurors Tuesday she tried to instill values of “honesty, humility and kindness” in her son — as other kin and pals continued to vouch for his character at his manslaughter trial.