On July 19, 1995, a Riverside County jury found Suff guilty of killing 12 women and attempting to kill another, though police suspected him responsible for as many as 22 deaths. Suff did not testify in his own defense. During the penalty phase that followed, the prosecutor presented evidence linking Suff to the 1988 murder of a San Bernardino woman, as well as evidence that despite his prior Texas prison term for murdering his first daughter, he abused and violently shook his three-month-old daughter by his second wife. On August 17, 1995, after deliberating for only 10 minutes, the jury returned verdicts of guilty on 12 murder counts and on one count of attempted murder.