News release from Hermiston Police Chief Jason Edmiston:
In the evening hours of March 4th, 2015, 23-year-old Umatilla resident, Alonso Madrigal was senselessly murdered in the parking lot of a convenience store in the 400 block of NW 11th Street, Hermiston. From early in the investigation, several persons of interest were identified and for the last 6+ years, Hermiston detectives have worked on the investigation. In the days after the murder, detectives flew to California where a vehicle involved in the homicide was located and seized. Detectives have remained in constant contact with the family of Alonso. Last night the family was contacted and advised Jose Oseguera, 40 years of age, of Umatilla, was taken into custody and lodged in the Umatilla County Jail for the killing of Alonso.
Mr. Oseguera was arrested last night around 7 PM in the Walmart parking lot here in Hermiston by HPD detectives, the Oregon State Police, and the Blue Mountain Enforcement Narcotics Team (BENT). At the time of his arrest, Mr. Oseguera possessed a loaded handgun, crystal substance suspected to be methamphetamine, and a large amount of cash.
There are too many people to recognize and thank and it is my hope I do not forget anyone. Throughout this investigation, HPD has received assistance from the Umatilla-Morrow County Major Crime Team, the Umatilla County District Attorney’s Office (DA), the Los Angeles Sheriff’s Office crime lab, the Huntington Park (CA) Police Department, and the United States Marshals Service. Yesterday before the arrest, the Umatilla Police Department assisted while our detectives were in their city. Perhaps the biggest thank you from the Hermiston Police Department needs to go to Alonso’s family. They have been so incredibly patient and understanding with us as our detectives worked the investigation. We had all the pieces of what transpired that fateful night, we were just waiting for a break we prayed would come. Within the last couple of months, that break happened and the DA’s office presented the information to a grand jury where an arrest warrant was eventually issued for Mr. Oseguera. It is our sincere hope that once brought to justice with a conviction, the family will have some sense of closure.