All of the grammar books I have consulted indicate that who(m)/that are the only relative pronouns to be used with people.
I thought that you could use "which" when you point out a specific person in a group. Is this not acceptable/ is there a situation where one could use "which" to refer to a person directly?
A quick google search for "the man which" revealed several bible passages with this combination, but nothing in the line of grammar explanations.