LA VISTA, Neb. (AP) – Omaha police say the 25-year-old son of a woman whose body was found in southeast Omaha has been arrested after turning himself in, saying he was involved in her death. The body of the woman, 45-year-old Jesus Ismenia Marinero, was found Wednesday night in a ditch. Hours earlier, her 11-month-old son was found alive in a dumpster near a suburban Omaha apartment complex. Other than some bruises, he was uninjured.

Authorities continue to search for Marinero’s missing 5-year-old son, Josue Ramirez-Marinero. Police officials say they have reason to believe that Josue was thrown into the Elkhorn River. Police say Roberto Martinez-Marinero was arrested Thursday night after walking into the Douglas County Department of Corrections and telling jail staff that he was involved in the death of his mother.