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CNN’s Anderson Cooper apologized after the network aired profanity in its coverage of Michael Dunn’s trial, Mediaite reported. The testimony was shown during Cooper’s program Anderson Cooper 360.

Dunn is on trial in Florida for the 2012 shooting death of 17-year-old Jordan Davis. Dunn claims self-defense. (More on the trial over at the Los Angeles Times.)

Without censoring the profanity, CNN showed a portion of Dunn’s testimony, in which he said “motherf**ker” and “sh*t”

Cooper’s apology is below:

Apologies for the curses aired from the witness stand during the Dunn trial tonight. They should have been beeped out. I am deeply sorry.

— Anderson Cooper (@andersoncooper) February 12, 2014