Sinead O'Connor, Trayvon Martin: Irish Singer Demands Justice in Case of Slain Teenager

Sinead O'Connor feels very deeply about the February slaying of Trayvon Martin, the Florida teenager gunned down by a neighborhood watch volunteer, and in an open letter posted on her website, the Irish singer calls for the arrest of triggerman George Zimmerman, who has claimed he acted in self-defense.

"I would like to extend my very deepest sympathies to the family and other loved ones of murdered teenager, Treyvon Martin," O'Connor writes. "I am very sad today (and am certain the whole of Ireland is) to learn of poor Treyvon's terrifying ordeal and horrified by the fact his known and named and admitted killer has not been arrested, despite the crime having taken place a month ago. This is a disgrace to the entire human race."

She goes on to address racism, chastising bigots for dishonoring Africa, the place she calls the birthplace of mankind.

"If you hate black people, its yourself you hate," O'Connor writes. "And the mother who bore you. If you kill or wish ill on black people, its yourself you kill and wish ill on. As well as the mother who bore you."

President Obama has called for a full investigation of the killing, and such celebrities as Spike Lee, Cher and Sean 'Diddy' Combs have lent their support to the cause. For her part, Sinead is asking people in Ireland to stand up and push for justice.

"Please.. ALL Americans should deplore this crime," O'Connor writes. "As should ALL people of ALL nations. And deplore the fact this man has not been arrested. All Irish people should do the same. And I ask that we here in Ireland should express through our American embassy that we would like to see this man arrested this very minute. Because racism is not acceptable. Nor is vigilantism. And this was very clearly in no way at all a case of self-defense."