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New details in the case against a Navy SEAL charged with multiple war crimes emerged during a marathon hearing this week at Naval Base San Diego.

Friday’s hearing revealed that seven Navy SEALs have been granted immunity to testify for the prosecution during the upcoming trial of Edward R. Gallagher, a chief special warfare operator alleged to have murdered a wounded teenage Islamic State combatant by stabbing him in the neck.

The trial phase is scheduled for Feb. 19. Prosecutors expect to call the seven SEALs and up to 13 additional witnesses of the May 2017 slaying in Mosul, Iraq. Defense attorneys asked the judge, Navy Capt. Aaron Rugh, to suppress some aspects of those witnesses’ expected testimony, particularly the numbers of people Gallagher allegedly bragged about killing.

Witnesses told investigators that Gallagher boasted of killing up to 200 people during the 2017 deployment. Another witness said Gallagher told him he killed “three a day” and to “do the math” for the total number he killed.

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