Conrad Murray Don't Worry ... I'm Optimistic

11/4/2011 6:18 AM PDT

Conrad Murray -- Don't Worry ... I'm Optimistic

Dr. Conrad Murray is "optimistic" about his chances for acquittal ... this according to people close to the doc.

Murray spent last night at home, with his baby mama Nicole Alvarez and their child. Murray says he has faith the jury will not come to the conclusion he caused Michael Jackson's death.

Murray has been the poster child for projecting innocence during a criminal trial, frequently seen strolling in Santa Monica and appearing carefree.  Two nights ago, he went to a popular Malibu restaurant with some of his patients.