Originally, her brother-in-law pleaded guilty to child neglect but after police found the Facebook conversation, they confronted Calahan.
She admitted to shaking the child.
Lakeira was 11-months-old when she died in 2009.
After Lakeria's death, Calahan left Virginia Beach.
When they found the Facebook message, police traveled to Arkansas to question Calahan.
Her brother-in-law served a year in prison for child abuse.