Platoon members also accused Gallagher of shooting a 12-year-old kid and discussed rumors of him attacking civilians.
The footage is part of a trove of confidential Navy investigative materials that the Times obtained about the prosecution of the special operations chief. "Their lies and (Naval Criminal Investigative Service's) refusal to ask hard questions or corroborate their stories strengthened my resolve to go to trial and clear my name".
They described how their chief seemed to love killing, how he targeted women and children and boasted that "burqas were flying".
The footage provides revealing insights of the men who worked with Gallagher and turned him in.
They have never spoken publicly about the case, which has divided the elite fighting force known for its secrecy.
"Sorry about this", Special Operator First Class Craig Miller told an investigator as he tried to hide his tears.
"The guy used to be poisonous", Particular Operator First Class Joshua Vriens told investigators with Naval Criminal Investigative Carrier brokers, in accordance to the myth, which used to be published Friday.
"You could tell he was perfectly O.K. with killing anybody that was moving", Special Operator First Class Corey Scott, a medic in the platoon, told Navy investigators, according to The Times, which reported that the platoon members declined to comment to the newspaper.
The Times also obtained thousands of text messages the SEALs exchanged about Gallagher, including one in which one tells the others the importance of testifying truthfully. The camera then shuts off.
Three SEALS then described in video interviews how they saw Gallagher stab the sedated captive for no reason and hold an impromptu ceremony over the body as if it were a trophy.
The case of Chief Petty Officer Edward Gallagher gained national attention when President Trump championed him. "I offered - as I do in all matters - the facts, the options, my advice, the recommendations", he said. The attorney added that this was "enough said".
"The President, as Commander-in-Chief, is ultimately responsible for ensuring that the law is enforced and when appropriate, that mercy is granted", the statement read.
Image copyright Getty Images Image caption US Navy chief Richard Spencer was sacked over his handling of the case Has Gallagher responded to the videos? Members of the platoon agonized about reporting the actions of Gallagher to military officials but felt compelled after SEAL's leadership refused to take any action when they raised their concerns.
"My first reaction to seeing the videos was surprise and disgust that they would make up blatant lies about me, but I quickly realized that they were scared that the truth would come out of how cowardly they acted on deployment", Gallagher said in a statement to the Times issued by his lawyer Timothy Parlatore.
Reports late last month said Gallagher was set to retire from the Navy.