Did Jesus really exist? Does anyone outside Christianity believe it. Yes!
Maimonides, famous 12th century Jewish scholar, in his "Epistle to Yemen," wrote "Jesus of Nazareth . . . interpreted the Torah and its precepts in such a fashion as to lead to their total annulment. The sages, of blessed memory, having become aware of his plans before his reputation spread among our people, meted out fitting punishment to him."