HUNTSVILLE, Ala. (WHNT) — An Army lieutenant in Colorado stands accused of sex crimes in three states. But, there is a shocking twist to this case.

In a motion filed recently, Aaron Gregory Lucas is claiming his identical twin brother is responsible for the sexual assaults.

Lucas is charged in Madison with sexual abuse of a child under 12 and enticing a child for immoral purposes.  Madison police say they submitted evidence in this case to the Department of Forensic Sciences in December of 2007.  

An Army 1st Lt., Aaron Gregory Lucas is married, a father of two and still considered active duty.

Investigators say during his service at Fort Carson in Colorado Springs, he lured or tried to lure 11 young girls into his car.  The children were all between 6 and 9 years old.

Prosecutors say Lucas sexually assaulted three of them.

His lawyers have filed a new motion asking a judge if they can implicate another man for those Colorado crimes — a man they say “bears a striking resemblance” and drove a similar car.

Both were born in July of 1981. WHNT News 19 requested an interview with Brian Lucas, Aaron’s twin, but that request was denied.

Lucas is also accused of rape in Texas.  In every case, his lawyers say Lucas’s identical twin is to blame.

Investigators at the Madison Police Department say they were unaware Aaron had a twin brother until his defense team made that known in court filings in Colorado last week. Investigators say their case is on hold until Aaron Lucas stands trial on the charges against him in Colorado and Texas.

Lt. Lucas has a glowing military resume, including 10 medals and awards in his four years of active duty, including a bronze star.

Investigators in Colorado Springs say the crimes against the young girls started shortly after he started his service at Fort Carson and stopped when he left for Afghanistan.

Lieutenant Lucas faces 23 charges that could send him to prison for more than 100 years if he’s convicted on every count.

His trial is scheduled for January.