Portland police has said that a body found by school children in northeast Portland on Monday has been identified as 13-year-old Julio Cesar Marquez who was slain, according to Fox 12 Oregon.

Police said Marquez's death was a result of multiple gunshot wounds and blunt-force trauma. His body was found on the 10700 block of northeast Halsey Street.

Police originally said the teenage boy's death was suspicious. They have yet to establish a motive for the killing and have no suspect in custody.

Police are asking anyone with information -- whether they have heard or saw a disturbance in the area on Monday -- to contact Detective Bryan Steed at (503) 823-0395 or Detective Rico Beniga at (503) 823-0457.

Crime Stoppers is also offering a cash reward of up to $1,000 for any information that leads to an arrest in this homicide case. Any tip given to police can remain anonymous. Tipsters can call 503-823-HELP (4357) or go to the Web site crimestoppersoforegon.com.

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