Erika Kirk -- the wife of Charlie Kirk -- is set to speak for the first time since he was killed at Utah Valley University ... and, TMZ is streaming her comments live.

Mrs. Kirk will speak to the world via Turning Point USA's website and social media pages at 5:15 PT. She has not yet spoken out or even posted about Charlie since he was shot on Wednesday. Gallery Launch Gallery Getty

It comes at the end of a tragic and difficult week for the Kirk family. A shooter killed Charlie on Wednesday while he spoke at a Q&A event on the campus in Orem, UT.

Kirk was shot in the neck, then rushed to the hospital, where he was ultimately pronounced dead.

After a two-day manhunt, law enforcement arrested 22-year-old Tyler Robinson and booked him on charges of aggravated murder,

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