(CNN) -- People confess to a lot of things on Facebook: their frustrations, bad habits, secret longings and new loves. A Florida man confessed to something much more sinister Thursday. He said he killed his wife.

Derek Medina, 31, posted a picture of her blood-stained body -- collapsed and contorted on the kitchen floor -- to his Facebook feed with a note.

"Im going to prison or death sentence for killing my wife love you guys miss you guys takecare Facebook people you will see me in the news."

Medina, who lives in South Miami, drove to see his family, to tell them what he did. Then he turned himself in to police, according to his arrest affidavit.

He was charged with first degree murder.

Facebook friends commented on the photo in shock.

"That is my friend there."

"What happened???? derek."

"WHAT??????"

Other Facebook users reacted with disgust to the posting of the picture of his wife's corpse. She was 26.

See more at cnn.com

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