Aaron was a product of Raccoon City’s industrial heart. His father was a master mechanic who taught him that anything broken could be fixed with enough grit, and his mother was a teacher who instilled in him the value of every individual life.

• The Turning Point: As a teenager, Aaron watched a group of officers under Chief Irons’ early command harass a local shopkeeper. He didn't turn away in anger; he turned toward the academy. He vowed to be the officer who looked people in the eye and treated the "invisible" citizens with dignity.
• The Family Anchor: When his older brother was killed in a tragic factory accident at the Umbrella chemical plant, Aaron became the sole protector of his family. That instinct—to stand between his loved ones and the world’s cruelty—became the defining trait of his police career.

Aaron was a field officer who refused to see the "big picture" if it meant ignoring the person standing right in front of him. This trait is exactly why he survived the initial collapse of Main Street when more "tactical" officers died.

| Date | Time | Phase | Tactical Action | | --- | --- | --- | --- | | Sept 23 | 22:00 | The Crisis Response | Aaron pulls three survivors from a burning sedan after a riot-related crash. He ignores orders to regroup, staying to provide first aid. | | Sept 24 | 04:55 | The Main Street Blast | Following the "Outbreak Survivors'" detonation of Main Street, Aaron is part of the clean-up unit sent to reclaim the sector. | | Sept 24 | 06:00 | The Disastrous Failure | The mission turns into a slaughter. Officers Dehne, Charlie, and Neil are overwhelmed. Aaron stays behind to cover a slow-moving elderly couple, narrowly escaping the horde. | | Sept 24 | 14:00 | The Retreat | Aaron leads a handful of stragglers back to the R.P.D. station, where he meets a wounded Marvin Branagh. |

When the R.P.D.’s Special Forces units were wiped out, the structure of the department dissolved. Marvin Branagh, suffering from a fresh bite wound and the weight of command, looked to Aaron. He didn't need a politician; he needed a builder.

• Field Commander: Marvin tasked Aaron with the impossible: turning a historic building into a fortress. Aaron utilized his father’s mechanical mindset to identify the station’s structural weak points.
• The Architect of the West Office: Aaron personally oversaw the fortification of the West Office. He was the one who insisted on bolting the metal shutters and creating the "refugee zones" in the Main Hall, ensuring that the civilians weren't just hidden, but protected.

The Main Hall of the R.P.D. was a cavern of shadows, filled with the low murmurs of terrified survivors and the metallic clack-clack of Aaron checking the locks on the heavy front doors. Aaron stood by the reception desk, a topographical map of the city spread out before him. His uniform was tattered and stained with grease and oil from the barricades. He looked up as Marvin approached, the Lieutenant’s face pale and drawn.

"The West Office is as secure as it's going to get, Marvin," Aaron said, his voice a low, steady rumble. "I’ve got Fred on the rooftops and Tony near the kennels. We’ve funneled the refugees into the center. If they get through the East Gate, we have a clear line of fire."