So, One of my close friends have been angry at my Other friend who is now Gay....

One of my friend "C" has cut all ties and is extremely angry at my friend "L" for being gay, both of them have been bestfriends for as long as time can tell, and "C" found out Yesternight that "L" was gay... and my Friend "L" has been emotional blackmailing my friend "A" and "L" has been ranting and calling slurs at "A" and "C"... what do i do? all of them are my friends? and they have been fighting.
Might I add they are fighting with "L" because he was dating a 9th grader 13 year old boy while he is 20 and also had Sex as he told "A" about it

well? should i cut "L" off too?