Nathan Proto, 36, of Sebastopol, California, was killed on October 15, 2016, during a violent robbery tied to a marijuana transaction in an unincorporated area of Sonoma County south of Sebastopol. Three people were shot in the incident; Nathan and another man, John Mariana, died, and a 23-year-old woman was critically injured but survived after being shot in the head.

Nathan had a background in education, holding a teaching credential from Sonoma State University and having taught kindergarten and third grade before starting a business in Sebastopol. He was active in community projects in San Juan del Rio, Oaxaca, Mexico, working on economic and community development there.

Investigators identified two suspects in the case: Robert Lee Randolph Jr. and Maria Teresa Lebron, who fled Sonoma County. If anyone has information about Nathan, the crime scene that day, or the suspects’ movements prior to October 15, 2016, please come forward.