jose pena and joseph antenucci were medical doctors who were general partners in a medical practice. both doctors treated elaine zuckerman during her pregnancy. her son, danial zuckerman, was born with severe physical problems. elaine, as daniel’s mother and natural guardian, brought a medical malpractice suit against both doctors. the jury found that pena was guilty of medical malpractice but that antenucci was not. the amount of the verdict totaled $4 million. the trial court entered judgment against pena but not against antenucci. plaintiff zuckerman made a post trial judgment against both defendants. is antenucci jointly and severally liable for the medical malpractice of his partner, pena?