Possible Clues:

• Friend starts to deny having affection for enlightened teacher
• “Conquer anger with love” proclaimer
• Siddhartha Gautama by another name
• Religious figure
• Indian religion founder
• Controversial tome this one revered could be badmouthed
• US pal had destroyed shrine icon
• Shoot father with hothead for religious leader
• Old teacher had trouble following friend
• 'The enlightened one'