Davis adopted thering nameJ. T. Dunn as a tribute to his late mother, whose maiden name was Dunn.[4] After training under Dave Cole andChris Hero,[2] he debuted on theindependent circuit in December 2009 and began working forBeyond Wrestling in June 2011, defeating Stan Stylez in his first match with the promotion.[5] He then won a newcomer's 10-Person Gauntlet, defeatingJoey Janela in the finals. The following day, he lost to Aaron Epic in a fatal four-way match, also featuring Dan Barry and Jarek 1:20.[6] On July 23 at About Time, he lost to Leon St. Giovanni.[7]
In November 2013, Dunn andDavid Starr took part in Beyond's Tournament for Tomorrow as The Juicy Product, defeatingThe Osirian Portal (Amasis andOphidian) in the first round but losing to Team Tremendous (Dan Barry and Bill Carr) in the semi-finals.[8] After The Juicy Product split in late 2014, Dunn began teaming with Hero in March 2015 as the tag team Death by Elbow. In their first match together, they defeated Starr andEddie Kingston.[9] At Beyond Scorned on April 25, Dunn defeated Starr in a singles match.[10] On May 31 at The Real Thing, Death by Elbow defeated Team Tremendous,[11] and defeated Da Hoodz (Davey Cash and Kris Pyro) in June.[12] The following month at Beyond Americanrana, they defeatedThe Young Bucks.[13] On December 27, Dunn once again lost to Hero in singles action.[14]
On January 31, 2016, Dunn defeated Janela in a steel cage match,[15] but lost to Janela in a dog collar match on February 28.[16] On December 29, Dunn and Hero lost to The American Destroyers (Donovan Dijak and Mikey Webb) in their last match together.[17]
Dunn debuted withCZW in 2013, and soon formed a tag team with David Starr known as The Juicy Product (combining Dunn's nickname of "The Juice" and Starr's nickname of "The Product"). In their first match as a tag team, Starr and Dunn lost to 4-Loco (Azrieal and Bandido Jr.) at Down With the Sickness.[19] At Cerebral in October, they won their first match as a team, defeating Caleb Konley and Shane Hollister at Cerebral.[20] On November 2 at Night of Infamy, Starr (along with Andrew Everett, Caleb Konley, and Latin Dragon) took part in a 5-Way Scramble match to determine the new No. 1 contender for theCZW Wired Television Championship, which was won byShane Strickland.[21] On December 14 at Cage of Death XV, Starr and Dunn unsuccessfully challenged Blk Out (Ruckus andBlk Jeez) for theCZW World Tag Team Championship.[22]
On January 11, 2014, at Answering The Challenge, Starr and Dunn were defeated byOI4K (Jake and Dave Crist).[23] At CZW's 15th Anniversary Show on February 8, The Juicy Product faced OI4K, The Nation Of Intoxication (Danny Havoc and Lucky 13) and The Front (Ace Delic and Sozio) in a 4-way match, won by The Front.[24] At High Stakes 5, Dunn and Starr teamed up withBiff Busick andAlex Colon in a loss to OI4K, Azrieal and Chris Dickinson.[25] On April 12 at Best of the Best XIII, Dunn and Starr became the new #1 contenders to the CZW Tag Team Championship, defeating OI4K.[26] On April 27 at To Infinity, Starr and Dunn defeated The Beaver Boys (John Silver and Alex Reynolds) to become the new CZW World Tag Team Champions.[27] They made their first successful defence at Proving Grounds on May 10, defeating Silver and Reynolds in a rematch.[28] They once again successfully defended the championships on May 31, defeating Los Ben Dejos (Jay Cruz and Jay Rios).,[29] and on June 14 at Tournament Of Death 13, they retained the championships once again, this time against Drew Gulak and Sozio.[30] The Juicy Product made a surprise appearance for CZW's sister all-female promotionWomen Superstars Uncensored (WSU) later that month, defeating Annie Social andKimber Lee in 10 seconds to win theWSU Tag Team Championship.[31]
Back in CZW, they again retained the CZW Tag Team Championship at New Heights on July 12 in a fatal four-way match, defeating The Beaver Boys, OI4K and Team Tremendous (Dan Barry and Bill Carr).[32] On September 13 at WSU Resurgence, they successfully defended the WSU Tag Team Championships in a rematch against Lee and Social,[33] and later that night retained the CZW Tag Team Championship against OI4K and The Beaver Boys in a 3-way ladder match at Down With The Sickness.[34] On September 27 at Deja Vu, Starr and Dunn lost the CZW Tag Team Championships to OI4K.[35] At WSU's 8th Anniversary Show on February 21, 2015, Dunn and Starr were defeated by Lee and Social for the WSU Tag Team Championship.[36] On October 10, 2015 at Tangled Web 8, Dunn defeated former tag team partner David Starr.[37] On October 14, 2017 at The Wolf Of Wrestling, Dunn (now being accompanied by Josh Briggs) returned to CZW and defeated Space Monkey, John Silver, and Trey Miguel in a fatal-four-way match.[38] He then went on to defeat Ace Romero at Night Of Infamy after an assist from Briggs.[39]
Dunn debuted for German promotionwXw in September 2016, losing toWalter.[40] From September 30 to October 2, Dunn and Hero participated in the wXw World Tag Team League as Death by Elbow in the B Block. They won two of their matches, defeating Cerberus (Ilja Dragunov and Julian Nero).[41] The LDRS of the New School (Zack Sabre Jr. andMarty Scurll),[42] but losing to A4 (Absolute Andy andMarius Al-Awani).[43] They finished the tournament with 2 wins and 4 points and did not advance to the final.
Dunn debuted inPWG as part of Death by Elbow at All Star Weekend 12 in a losing effort to the team of Ricochet and Matt Sydal. Later at Thirteen, the team unsuccessfully challenged The Young Bucks for thePWG World Tag Team Championship.[44] Dunn returned to PWG in December, teaming with Hero and losing toreDRagon (Kyle O'Reilly andBobby Fish).[45]
In 2007, whilst Davis was training to become a wrestler, a fellow traineebotched achokeslam on him; he was dropped on his head, causing his right knee to smash into his face.[4] He has said that he has no recollection of who performed the move and did not actually feel any pain because hisorbital bone broke away and pinched a nerve connected to his brain, causing temporary facial paralysis.[4] He had facial reconstructive surgery and a metal plate inserted into the right side of his face.[4]
Davis has said that he became addicted to drugs and alcohol during high school; in May 2012, when he was 22 years old, he woke up in his apartment with no recollection of how he got there after binging on drugs and alcohol that a wrestling promoter had given him as payment.[4] He has been sober ever since.[4][unreliable source]