4 Arrested In Killing Of Oceanside, California …31/03/2013 · Police said 13-year-old Melanie Virgen and 15-year-old Edgar Sanchez were killed March 13 at Libby Lake Park. Two boys, both under 17, were wounded. http://www.huffingtonpost.com/2013/03/31/melanie-virgen-edgar-sanchez_n_2988313.html