( CNN ) -- In an abrupt 180 , a Colorado soldier who tried to blame his identical twin brother for sex crimes pleaded guilty Tuesday to those same charges . Aaron Gregory Lucas , 32 , pleaded guilty to four counts of sexual assault on a child , three counts of enticement , two counts of indecent exposure and one count of kidnapping , according to a spokeswoman for the 4th Judicial District Attorney 's Office in Colorado Springs , Colorado . A judge in El Paso County ruled this month that Lucas would be allowed to name his twin brother , Brian Lucas , as a suspect in his defense . Sentencing for Aaron Lucas was set for February 28 , said Lee Richards , the spokeswoman . `` There is no evidence to suggest that the twin brother of Aaron Lucas was in any way responsible for these crimes , '' said prosecutor Jennie Darby . `` It 's unfortunate that his name was even brought into this case , '' added prosecutor Kelson Castain , according to a post on the Facebook page of the district attorney 's office . Aaron Lucas is a decorated Army officer assigned to Fort Carson in Colorado Springs . His attorney , Ted McClintock , told the Colorado Springs Gazette that his client pleaded guilty because `` he wanted to do the right thing . '' `` He loves his family . He does n't want to create problems for them , '' the newspaper reported he said . McClintock did not immediately return an after-hours call for comment from CNN . So-called evil twin defenses have been used before in courtrooms . Defendants with an identical twin have sometimes accused the sibling of being the real culprit to try to create reasonable doubt and seek acquittal , but the finger-pointing is n't a sure-fire strategy , said CNN legal analyst Danny Cevallos , who 's also a criminal defense attorney . `` No two of us have the same set of DNA -- with one exception , and that is identical twins , '' Cevallos said . CNN 's Michael Martinez and Miguel Marquez contributed to this report .
NEW : Defendant 's attorney reportedly says client `` wanted to do the right thing '' Aaron Lucas pleads guilty to four counts of sexual assault on a child . A judge had ruled that he could name his brother as a suspect in his defense . Prosecutor : `` No evidence to suggest that the twin brother ... was in any way responsible ''