Morrison was a Seegson Security officer aboard Sevastopol Station in 2137, under the command of Jake Sinclair. During the Xenomorph infestation on Sevastopol, Sinclair and his team abandoned their posts when they realized their chances of survival would increase if they went rogue.
Morrison was subsequently murdered by another survivor after heading off alone to search for supplies.
After heading off alone to search for supplies, Morrison was killed by an unnamed survivor, an event witnessed by Cooper. The survivor would later refuse Cooper entrance to his hideout, and in response Cooper informed Sinclair about Morrison's killer.
- Alien: Isolation (mentioned only)