"I made the determination that there was no need for an additional investigation into this particular operation," said Gen. Joseph Votel.
Earlier on Thursday, The Intercept published its own investigation of the raid based on eyewitnesses, including a 5-year-old who described how his mother was gunned down while trying to flee what other family members said was indiscriminate gunfire from a helicopter.
The White House has tried to shame the raid's critics into silence. Last month, White House Press Secretary Sean Spicer told reporters "anyone who undermines the success of that raid owes an apology and [does] a disservice." In a series tweets the next day, President Trump said criticism from Sen. John McCain, R.-Ariz., "emboldens the enemy."
Media coverage has largely focused on Owens, the fallen Navy SEAL, and whether the raid produced intelligence — not on the massacre or village, which is now mostly abandoned.