On May 28, 2020, plaintiff Simon Cheong, 32, a dentist, was motorcycling in Fullerton when a vehicle operated by Thomas Collopy attempted to make a left turn in front of Cheong’s motorcycle, but struck the motorcycle instead. The force of the crash caused the motorcycle to break in two and launched Cheong onto the sidewalk. Cheong sustained to his chest, left leg, right shoulder, hip, pelvis and heel. Cheong sued Collopy, alleging that Collopy was negligent in the operation of his vehicle. Plaintiff’s counsel contended that Collopy failed to yield to Cheong, causing the crash. Counsel also noted that a nearby security camera captured a portion of the crash. In addition, counsel noted that local police responded to the scene, and they recorded scene evidence and witness statements with their body worn cameras., Cheong sustained multiple traumatic to his left leg, including a partial traumatic amputation of his left leg (below the knee), a left distal femur fracture, an open fracture of the left patella, fractures of the left tibia and fibula, and to the left leg’s distal, anterior tibial artery and peroneal (fibular) artery. He also sustained fractures of the anteromedial acetabulum (bilaterally), left pubic ramus, and right medial calcaneus. In addition, he sustained a right scapula fracture, right clavicle fracture, fractures of the right ribs (numbers one through five), and a right pulmonary contusion. In addition, he suffered hematuria (blood in the urine), rhabdomyolysis (a serious syndrome due to a muscle injury), lactic acidosis (lactic acid building up in the bloodstream), leukocytosis (a condition in which the white cell is above the normal range in the blood), acute blood loss, anemia, and acute pain due to trauma. Cheong was taken to a hospital, where he underwent a complete below-the-knee leg amputation via surgery. Cheong was unable to work for several months due to his , but he was eventually able to return to work as a dentist in October 2020. However, he claimed that he continues to suffer mental and emotional distress as a result of his . Cheong claimed that his future care will include the need for radiological studies, neurologist/orthopedic surgeon visits, and physiatrist visits for pain and medication management. He also claimed that he will need replacement prostheses and related supplies, advanced technology for his prostheses (e.g., osteointegration, neuromuscular innervation, microprocessor/myoelectric feet, etc.), and prescription pain medications. Cheong sought recovery of past and future medical costs, and damages for his past and future physical and emotional pain and suffering.