Drew Beckwith is the dead pharmacist Ellie finds in Left Behind, locked in the American Princess store at the Colorado Mountain Plaza. You need the Pharmacy key from his body in Back in a Flash to open the drugstore and keep going.
Behind the counter in Weston's Pharmacy, Ellie finds the Combination note. Its writer says the pharmacist went crazy and attacked them, that they hit him hard and locked him next door, and asks whoever reads it to get him help. The lock code is written at the bottom.
Use the code to open the American Princess store. The Pharmacy key on his body opens the employees-only door of the drugstore so Ellie can reach the crashed helicopter. Once you loot the key you can also pick up the Pharmacist's note, a photo booth strip of him with Laura and a short goodbye from her on the back.
Drew turned after the outbreak and later died of the injuries from that fight, still locked inside the store.
Ellie Williams
Ellie Williams is the 14-year-old girl Joel is hired to smuggle out of Boston, and your companion for most of The Last of Us Part I. She was bitten weeks earlier and never turned, so the Fireflies believe her immunity could lead to a vaccine. You play as her in the winter chapter and in the Left Behind DLC.
Eugene Ellis
Private Eugene Ellis is a soldier from a FEDRA helicopter crew that crashed at the Colorado Mountain Plaza. In Left Behind, Ellie pieces together his story from his captain's notes and his own recordings while searching the mall for a medical kit for Joel.
Larry Caulfield
Chief Warrant Officer Larry Caulfield is a member of the FEDRA helicopter crew that crashed at the Colorado Mountain Plaza. In Left Behind, Ellie learns what happened to him from Captain Regan Francis's notes.
Laura Brown
Laura Brown is the partner of the dead pharmacist in Left Behind. Ellie finds a photo strip of the couple with a note from Laura on the back, the Pharmacist's note, in the American Princess store during Back in a Flash.