I was wondering if the Messiah who is prophesied by many has already to come or are we to continue looking?
According to Rabbi Hillel, the Messiah has already come, and it was king Hezekiah.
Rabbi Hillel said: There is no messiah for Israel for he was consumed in the time of Chizkyahu. Rav Yosef said: May Rabbi Hillel’s Master forgive him. Chizkiyahu lived during the First Temple while Zechariah prophecied during the Second Temple.
You can read more about this here: http://www.torahmusings.com/2010/06/was-rabbi-hillel-a-heretic-2/