Man Arrested in Baby's Death

Cheyenne, WY – Cheyenne police arrested a 24-year-old man in the death of his girlfriend's 13-month-old girl.

According to a police press release, Ariana Martin was pronounced dead by the Laramie County Coroner at Cheyenne Regional Medical Center after the girl was found Thursday night lying unresponsive in an apartment bedroom. Police say investigators found injuries on the child's body that did not appear to be accidental.

Police say they arrested Alan Sandoval. They say that he is not the child's father but that he has been living with 19-year-old Elisha Martin, the girl's mother.

An autopsy is being conducted.