What is the Islamic legal ruling for a caricaturist who offends the Prophet, peace and blessings be upon him, taking into account the evidence from the Prophet's biography that speaks of killing those who harm the Prophet, and the verses of the Holy Quran that call for wisdom and good counsel, and those that speak of meeting evil with good, in addition to the verses on retribution for sedition?

The Prophet's command to kill Ibn Khatal was due to his apostasy from Islam, his killing of a Muslim, and his slandering of the Prophet. This does not contradict the verses that advocate for inviting to Islam with wisdom or for forgiveness, as each situation has its own ruling. The Prophet was forbearing and patient, as shown in the story of Zayd ibn Sa'nah, but an apostate and one who slanders deserves to be killed. However, the punishment should only be carried out when there is no fear of a greater evil resulting from it.