Kentucky State Police have now arrested the mother of a two-year old toddler in his death. Police charged 22-year-old Tiea Jones with murder and criminal abuse.

Her son, 2-year-old Nataniel Jones, died after being found unresponsive in his home in March of 2009. Police say testing and consulting experts conclude the child died of internal injuries from the result of blunt force trauma to the stomach.

Police charged the mother's boyfriend at the time, 30-year old Brian Gallagher, with murder earlier this week. Court records show he created the grave risk of death by abusing the boy.

Police say it took more than a year to bring charges against the couple because of delays in medical testing results.