Aaron Hotchner decides the BAU needs someone who can inspect the bodies and tell the cause of death when needed. Luckily, Hotch knows the perfect candidate. 25-year-old Olivia Carson is one of the best Surgeons out there. She spent time as a coroner before becoming a paramedic until lastly, she became a Surgeon. She has an eidetic memory and an IQ of 190. Despite being an actual genius, Olivia focuses her smarts on the human body, unlike Spencer Reid. The team welcomes the quiet woman with open arms but Spencer can't help but feel like there's something different with Olivia. He admits she's beautiful, intelligent, and that he may have a small crush on her but why can't Garcia find much information on her? And why does she wear long sleeves on the hottest days of summer?