Updated

A suspect has been arrested in connection to a 13-year-old girl found dead in a California park.

Police have arrested Anthony Lamar Jones who was identified as a suspect early on in the case and placed under surveillance, Fox40.com reported.

Police believe he acted alone and say he was not a danger to the public while under surveillance.

Genelle Conway-Allen had been reported missing Jan. 31. after she left a foster home in nearby Suisan City.

The naked body of Conway-Allen was discovered by a passerby Feb.1 in the city's Alan Witt Park.

An autopsy was performed, but officials would only say there were no obvious signs of trauma.

Investigators were trying to track the girl's activities in the hours before she ended up in Alan Witt Park.

Sacramento television station CBS13 reported the girl attended Green Valley Middle School, which is about eight miles from the park.

School Principal Gregg Hubbs declined to comment on the girl's death, and Fairfield police couldn't say if she had attended school on the day she was reported missing.

Police are not looking for any other suspects.

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The Associated Press contributed to this report.