Kaitlin Elizabeth Hernandez, 17, was found strangled and naked under a bridge in San Antonio, Texas. Police said her body showed signs of violence and the death is being considered a homicide.

Hernandez was last seen last Tuesday afternoon, when she went for a walk with a neighbor who was her friend. Police reported the discovery of a person of interest in the case, who – they said – is cooperating with the investigation. Crime Stoppers community program announced last Thursday that it is offering a reward of up to $5,000.