Video by WLWT

The Kentucky woman who fatally shot her ex-boyfriend in 2012 because he was going on a date with another woman has been sentenced to life in prison.

Shayna Hubers, now 27, reportedly showed little emotion as she was sentenced Thursday in the murder of Ryan Poston, who she shot six times in the head, neck and torso.

Hubers had previously said she was sorry for killing Poston, 29, in a letter to the judge presiding over her case, but has never put such an apology into words for the victim’s loved ones, The Cincinnati Enquirer reported.

"She has never said that to Ryan’s family,” Michelle Snodgrass, the lead prosecutor on the case, said in court. “She has expressed no remorse."

Hubers was 21 when on Oct. 12, 2012, she shot Poston at his Highland Heights condominium. Her defense team argued that she shot her ex-boyfriend in self-defense, but prosecutors said she killed Poston because he was leaving her.

Poston was pursuing a relationship with Audrey Bolte, who was a second runner-up in the 2012 Miss USA pageant after being crowned Miss Ohio.

© Provided by CBS Interactive Inc. Bolte testified that she met Poston on Facebook and was waiting to meet him for a drink on the night he was killed. Hubers found the Facebook messages arranging the date with Bolte before she killed Poston.

Hubers’ sentencing on Thursday came after the defense’s request for a mistrial was denied.

She had previously been tried for Poston’s murder, with the first trial resulting in a guilty verdict that was ultimately thrown out because one juror was discovered to have been a convicted felon, which is illegal in Kentucky.

The second jury found Hubers guilty in August after deliberating for five hours. They recommended life in prison, a sentence Campbell Circuit Court Judge Daniel Zalla said he saw no reason to alter, the Enquirer reported.

"Your actions that evening were grossly violent and intentionally calculated to cause his death," Zalla said.

Hubers will be eligible for parole in 14 years since she has already served six years in jail.