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© Aurora PoliceKaren Pena
The mother of a 22-month-old girl hit and killed by a van last month was allegedly using Facebook when the accident happened.

Police in Aurora arrested Karen Pena on Thursday. She now faces a charge of child abuse resulting in death.

Laneice Fletcher was killed in the parking lot of her apartment complex when she was hit by a commercial van. That driver has not been charged.

Police documents state Pena was using Facebook at the time instead of watching her toddler.

Neighbors also reportedly told police that before the accident Pena generally didn't do a good job of watching over Fletcher and her other children.