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Details about gunman, Gavin Long, who killed 3 Baton Rouge police officers

Gavin Long screenshot

Gavin Eugene Long (aka Cosmo Setepenra) screenshot from a YouTube video on his “Convos With Cosmo” page.

Today, July 17, 2016 is Gavin Long’s 29th birthday. The former Marine sergeant from Kansas City, Missouri, opened fire on police officers in Baton Rouge, Louisiana. He took the lives of Montrell Jackson, 32, and Matthew Gerald, 41, and Brad Garafola, 45, at around 8:45 a.m. in the Old Hammond area — less than a mile from police headquarters. One officer is in critical condition and the two others suffered non-life-threatening injuries and are being treated at Our Lady of the Lake Regional Medical Center at press time.

He was honorably discharged in August 2010 after five years of service and his final Marine rank was E-5.

Gavin Long's last tweet on his Convos with Cosmo with Twitter page

Gavin Long’s last tweet on his Convos with Cosmo with Twitter page

He owned a website: described as “The World’s Foremost Authority on Alpha Preneurism.”

Long wrote books using the pen name Cosmo Setepenra that can be found on and

According to his profile on

Cosmo is a nutritionist, life coach, dietitian, personal trainer, author and spiritual advisor. At the age of sixteen, after self-educating himself about fitness, nutrition, and diet, Cosmo lost over eighty pounds in six months. He then joined the United States Marine Corps and earned the rank of Sergeant (E-5) in less than three years as one of the Corps most physically fit Marines. During his five years as a Marine, Cosmo spent two years in Japan and did one tour in Iraq. While stationed in San Diego, California, Cosmo became a highly esteemed and sought after nutritionist and personal trainer. After completing an Associate’s degree in General Studies at Central Texas College, Cosmo then attended Clark Atlanta University to further his education. After a year and a half at Clark Atlanta as a dean’s list student, he had a spiritual revelation that resulted in him dropping out of college, selling his two cars, giving away all of his material possessions, packing two suitcases and journeying to Africa-his ancestral homeland. While in Africa, Cosmo’s spiritual journey took him across Rwanda, Ethiopia, Uganda, Kenya, Tanzania, Egypt, Ghana and Burkina Faso. During that time he frequented the highly treasured and revered mountainous regions of Africa and was taught by Africa’s native spiritual practitioners and elder holistic healers. Cosmo has been an avid student of nutrition, health, fitness, personal transformation and spiritual mastery since the age of sixteen. He conducts sports nutrition workshops locally, nationally, and internationally. He has traveled nationally to over thirty States in the U.S., and internationally to The Bahamas, Japan, Korea, Thailand, Maldives (Island country near India), Iraq, and Africa to name a few. In addition to over twelve years of health, fitness, and nutrition experience, Cosmo also has extensive sports nutrition, life-coach, and spiritual counseling experience with fitness enthusiasts, professional athletes and spiritual seekers. In one-on-one sessions, he coaches his clients on ways to create a daily food plan that is successful and can be maintained over the long-term. He also helps them reach their optimal weight, diet, spiritual and personal growth goals.

He penned several books. See the descriptions in the gallery and more photos of the gunman who died on the scene.


  1. cupcake333 on July 18, 2016 at 9:05 am

    GOD HELP US ALL…. how do whites who swear only thuggish improvished dumb unemployed ex con blacks are the problem with black community? and greatest threat to lawenforcement when both shooter are educated ex marines? so the shock is their own in black face is doing the horrific killings calculated plotted and execute by someone deemed as normal citizen miltary men are goverment employees like cops? hard to see where the threat is really? how can you fight a ghost u cant see? the war that started in iraq has made it way here. they train to protect america is nowing realizing they had war right here on amercam soil and feel dupped for fighten on a continent when were in war right here. .no wonder vietnam war was so protested … we should now be careful giving jobs to any soldier expecially a law enforcment job gavin could have easily got a cop job. .he didnt want it ,, micha johnson was excused with he was a rapist??? is that all he was? wtf .. half the miltary had pent up sexial tension try realizing young men with no sex away from gf and wives for two years and only females they met were female soldiers…. a few lust after female who were told to report any sexual passes or agressive behavior. . a young man will challenge that rule if sex craved .. no excuses just observation. what happen in afghan? why are ex soldiers coming home seeking revenge? everybody aint proud a ex miltary career .. is it justice or evil? depend on who u ask
    coincidennt is similarities in all these killings .. he was no associated wwith any group and some one better see all similarities a race war is what i see … who will the grand jury indict now? darren wilson walked and supressed anger surfaces now

    • Sol Rothstein on July 18, 2016 at 9:56 am

      THE ONLY THING happening is…

      When you FIGHT WARS and see DEATH, you start to believe DEATH is how you make change.

      America does this DAILY so we should do the same…STOP begging and protesting and start demanding and changing things.

      BLACK FOLKS are too busy begging..

      Honor this BLACK American Patriot !!!

      We/Blacks need more BLACK MEN like him…Protesting does NOTHING !!!

      Sorry but it didn’t help MLK, Rodney King, or Jesse Jackson…

      When are BLACK FOLKS going to see the BIGGEST group talking about stop SNITCHING are the WHITE COPS and their — “Blue Shield of Silence.”

      *** Bad cops should be RATTED OUT by GOOD COPS…they need to start SNITCHING !!!

  2. guest on July 18, 2016 at 9:20 am

    Starting to see a pattern. Wasn’t the Dallas cop killer also a military veteran? Did this man also see combat? There might be some ptsd.

    • Jason on July 18, 2016 at 9:35 am

      PTSD from being subjected to White Supremacy.

      • Sol Rothstein on July 18, 2016 at 9:57 am

        Or just a BLACK American Patriot !!!

        Freedom or Death…

        Nothing is GIVEN you must take it…Black FOLKS had better learn this.

  3. Miss B Fresh on July 18, 2016 at 10:57 am

    First off, he’s not that “spiritual”‘if he has taken a life! All credibility of life coaching and spiritually went out the door after he Murder innocent people. PTSD is real!!!! But most of all, Murder is real! Demonic possession is real!!!

    We have to stop condoning this behavior. Hate is a nasty spirit. It can possess you and completely take over your mind and have you into doing somethings that are out of your character. We are truly living in the end times. Wake up! Don’t you see that this battle is spiritual?!

    • Jordan J Davis on July 22, 2016 at 1:34 pm

      Actually the scripture used to require that we would kill in the name of God. Any person who was found to commit abominable acts against God was to not only be killed but likely stoned to death by the community. He even commanded Abram to kill his son just to prove his faith. (of course he stopped Abram at the last minute). The bible tells us to kill sodomites on site… so be not misguided by the “GOD loves everyone” church doctrine because the same bible they read from directly spells out how many different types of people God Hates… and what we were instructed to do to them. Read your old testament love and remember Christ didn’t come to do away with the old law, but to fulfill it.

  4. Elliott Spencer on July 21, 2016 at 6:42 am

    his books are gone 🙁
    hitler killed jews and his book mein kampf is available but cosmos book is not on amazon anymore

  5. cupcake333 on July 21, 2016 at 9:00 pm


    1. cop will quit by the dozen
    2. more qualified college black will get those job
    3. kkk will be angry since they are a part of faternal order of police
    4. black cop will start defending blacks wrongfully acciused
    5. class would be strictor and test to get in would be harder .. some cops barely finished high school remember they draft them from 11 grade .. .all white males dont go to college they end up in miltary or on skid ,,drugs trailer parks .. and hillbilly redneck ville .. . and they are angry and feel entitled end up mad at blacks riding in lamborgjinis and living in calasbases lol we have no idea why white men hate black men i linked it to their women marrying white men ..