LOUISVILLE, Ky. (WDRB) -- Police have arrested a man and woman in connection with the death of a 17-month-old boy in 2009. 

The child, 17-month-old Antoine Dixon Jr., was rushed to Kosair Children's Hospital on Nov. 25, 2009, after a worker at his daycare was unable to wake him from a nap. There was vomit on his cot and white foam in his mouth, when he was found. 

Now police are charging Dixon's mother, 33-year-old Alicia Daley, and her then-boyfriend, 35-year-old Jamaine Rhodes, with his death. Both were arrested on June 6, 2018. 

According to the arrest report, the child died days after he was admitted to the hospital. Police say his fatal injuries included "a skull fracture, multiple brain bleeds, swelling of the brain and liver lacerations."

The arrest report states there were other non-fatal injuries that included: "a healing pelvic fracture, healing and fresh rib fractures, and numerous other internal injuries of varying ages." 

The medical examiner ruled the death a homicide from blunt force trauma caused by multiple injuries. 

Police say the number of injuries indicates that Dixon was assaulted on more than one occasion. The injuries happened when the boy was being cared for by both Rhodes and Daley. According to the arrest report, Daley failed "to prevent the commission of the offense [which] caused serious physical injury and eventual death of the victim."

Police haven't said whether DNA tied Dailey and Rhodes to Dixon's death, but LMPD spokesman Dwight Mitchell credited advancements in medical technology. 

"Some medical technology has come along since that time," Mitchell said. "Thus, we were able to arrest both of those individuals yesterday."

He declined to give specifics, but added: "The medical community's help, that know far more about these things than we do, led us to the puzzle that brought us to these two individuals."

Mitchell says both were suspects "for a good deal of time." 

The daycare where Dixon was found was cleared of any wrongdoing in his death. Shinina Guthrie, the worker who found Dixon, told WDRB at the time that they never saw signs of abuse other than a bruise, but she and other workers did notice it was hard for the toddler to walk sometimes. 

"He would come in and his legs would be stiff where he wouldn't want to walk," said Guthrie. "I just hope they find out who done it to the baby."

Rhodes is charged with murder, assault, and first degree criminal abuse of a child 12 or under. Dailey is charged with complicity murder, complicity assault, and complicity criminal abuse of a child 12 and under. 

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