Alexander is an exceptional policewoman and a long-time friend of Adam Jensen, having worked with him in the 17th precinct years before. As part of her duties she researches the Derelict Row Ballers and Motor City Bangers gangs. By 2027, she started working with DCPD's Internal Affairs to root out a rogue cop, Jack O'Malley. Jenny is found across from the main entrance to Derelict Row, near the Chiron Building after Jensen is tasked with securing the neural hub in the police morgue. She asks Jensen to find incriminating evidence on O'Malley.
After investigating the weapon shipment in Derelict Row, preparing Double-T for questioning, finding second shipment of weapons and a stash of drugs in O'Malley's apartment, and bringing the murder weapon to Jenny, Adam is asked to arrest O'Malley personally. At this point Jensen may either knock him out, kill him, or accept a bribe and let him go.