SACRAMENTO, California – A Valley High School student was detained after being found with a loaded gun and knives on campus, according to the Sacramento County Sheriff’s Office. The student’s sibling was also involved in the incident.Earlier this afternoon, Elk Grove Unified School District staff were informed of a student seen with a firearm during lunch. A witness reported that the student’s sibling had carried the gun on campus the previous day. Sacramento County Sheriff’s Deputies and Elk Grove Police Officers, serving as School Resource Officers for the district, detained both students without incident.The 15-year-old student was found with…..