Mueller was sacked two days later. Coomer called it a lie.
Mueller was sacked by radio station KXGO two days after the 2013 incident and has been unable to find a job since.
He was sacked from his $150,000-a-year "dream job" at country station KYGO-FM after Swift's team reported the alleged assault to his boss.
The final testimony on Wednesday came from Frank Bell, Swift's liaison with radio stations.
Mueller's attorney Gabriel McFarland asked Dent why he did not intervene if he saw the alleged groping.
Swift also rejected the accusation that she misidentified had Mueller, saying: "I'm not going to allow you or your client to say I am to blame".
Swift, who has 85 million followers on Twitter and 102 million followers on Instagram, earned $170 million in the year to June 2016 following a world tour and her best-selling "1989" album, according to Forbes Magazine.
In response, SwiftcountersuedMueller for assault and battery.
Swift has stated that she filed the suit to "serve as an example to other women who may resist publicly reliving similar outrageous and humiliating acts".
Explosion injures 6 at Minneapolis school
The Minnehaha Academy Upper School is located at 3100 West River Parkway in the Longfellow neighborhood of Minneapolis . Fire crews extinguished the blaze and remain looking to remove any people who might be trapped, officials added.
Swift was confident and assertive in her testimony.
When Taylor faced Mueller's attorney during the trial, she did not miss any chance to use her sense of humor.
Former KYGO radio host David Mueller claims the photo, which has since been leaked to TMZ, proves that he was not "grabbing her bare ass" like the singer claims. She went on to argue that someone would have had to have been underneath her to see the actual grab, "and we didn't have anyone positioned there".
The pop superstar testified for about an hour on Thursday, sometimes using unflinching language in giving her account of what happened.
Swift testified Thursday that she "lurched" away from Mueller as the photo was taken.
She said that when it happened, a "light switched off in my personality".
"I did not want every interview from now on to have to make her include what happened to her". "I just said, in a monotone voice, thank you for coming and then they were gone".
Swift has been sued by Mueller for defemation after she initially made the claims.
The legal back-and-forth was initiated by DJ Mueller, 55, who claims he lost his job after Swift reported him to the radio station. It was intentional. He stayed latched on to my bare ass cheek. "(His hand) didn't let go", she told the jury.
Mueller had given evidence in the morning session, conceding that a picture taken during the alleged assault could be interpreted as incriminating.
Swift has testified that "it was a definite grab".
Asked whether she had sought witnesses, Ms Swift - who was not present at the encounter - she said she had no reason to doubt her daughter.
Mueller's then-girlfriend was also in the photo and at the meet-and-greet at the time, and in previous depositions has said she doesn't believe he would have groped the pop star. "We absolutely wanted to keep this private, but we did not want him to get away with it". After the incident, Taylor's security team accused Mueller of inappropriately touching the singer and he was subsequently fired from his job at the radio station.
IL thrill rides to face tests for permits
Wristbands for fair rides that open Monday at 4 p.m. run $18 and a discounted $12 on Wednesday's family night. All the rides at the State Fair are thoroughly checked before they are made available to the visitors.
Who Will Win The Bachelorette Tonight?
"I just love you and I'm in love with you and I can't imagine spending my life without you, " she said. As you may recall, just as Peter was about to get into the Fantasy Suite , reality got in the way .
Hero iPad steers Apple to surprisingly strong results
But more importantly, its forecast for the current September quarter - when the next, big iPhone launch is expected - is strong. Service revenues , which cover everything from the App Store to Apple Pay, reached a record $7.3 billion (up from $6 billion).
Breastfeeding can boost economies and save children's lives
During breastfeeding, antibodies and other germ-fighting factors pass from a mother to her baby and strengthen the immune system. By six months, only 34% of UK babies are receiving any breast milk, compared with 49% in the United States and 71% in Norway.
RBI makes first rate cut of 2017
Inflation in Asia's third largest economy has missed forecasts for the last six to seven months, noted DBS economist Radhika Rao. This cut down on central bank money lending rate is 6 per cent from 6.25 per cent.
'Game of Thrones' Season 7, Episode 3: The Queen's Justice
Used to the devotion of the slaves she freed over in sunshine state Essos, needless to say Dany's not hot for Jon's icy standoff. Cersei enacts another sweet revenge as Jaime passes poisoned wine to Olenna Tyrell , the last of Daenerys' ally from Westeros.
Vazquez homer does in Cleveland
This was Austin Jackson's 5th HR robbery of his career, tied for 11th most in Major League Baseball since his debut in 2010. That's when Cleveland got to Sale again - as Edwin Encarnacion took advantage of Fenway's short porch for a two-run homer.