RANCHO CUCAMONGA, California — Deputies responded to a disturbance in Rancho Cucamonga, leading to a pursuit and arrests involving a concealed firearm and resisting an officer. The incident unfolded on December 8, 2024, according to a press release from the Rancho Cucamonga Police Department.Deputies were dispatched to the 12000 block of North Mainstreet following reports of a disturbance involving subjects carrying a firearm. Upon arrival, they encountered four individuals, two of whom fled on foot. Marlon Gutierrez, a 20-year-old resident of Upland, was detained shortly after in a nearby parking structure, while Isaac Cannon, a 19-year-old resident of Rancho Cucamonga, initially evaded capture. A 16-year-old juvenile from Upland was found in possession of a loaded…..