Garcia faces one count each of aggravated sexual assault, home invasion, false impersonation of a police officer and residential burglary.
Police say Garcia was picked up close to the home invasion site in the 600-block of Grove Street.
Police say earlier that night, Garcia also allegedly burglarized MBA student Justin Shuman's residence. Both incidents took place in a downtown Evanston apartment building early Sunday morning.
"I was away Saturday night when my apartment was burglarized. They stole sunglasses, iPhone and my car keys," said Shuman.
Five hours later, police received a 911 call from the Northwestern student who says she was sexually abused.
"The victim was sleeping in her bed and that the offender entered through an unsecured window, and then approached her while she was in her bed and began to fondle her," said Commander Tom Guenther, Evanston Police Department.
Police say the female student was able to give a very detailed description of the offender, which Shuman says helped in his burglary case as well.
"The young lady provided a description... she said she bit his hand. They found a gentleman, his hand was bitten, fit the description and he had my car keys on him," said Shuman.