(Capcom's primary storyline)
Following a leak of the experimental ε strain, the Arklay Laboratory was quarantined and all employees presently at the building were prohibited from leaving. As the weeks passed, many of these employees began to physically deteriorate and mutate into Zombies, killing and eating their friends. As the Umbrella Security Service failed to contain the situation, the unarmed employees were left to fend for themselves. While hiding out at the Residence, Robert began to show symptoms of his latent mutation. In an attempt to prevent his, he was attacked by a friend and drowned in the Room 001 bathroom. Believing him to be dead, the man then hung himself to prevent his own mutation into a Zombie. Both, however, failed to die, and their zombified bodies survived until the night of 24 July. They would then rise up to attack the S.T.A.R.S. investigation team after the bathtub was drained.
Inside the Room 001 bathroom, Robert's body is found on the floor. After grabbing the item found in the bathtub, Robert will rise up to attack the player and the writer of the suicide note then breaks off his noose shortly after and will attack the player when they leave the bathroom. Robert can become a Crimson Head but there isn't much reason to go back in this bathroom after getting the item inside it so he may be left alone.
- Robert and his friend (author of the Suicide Note file), are perhaps the only victims among Umbrella employees during the Mansion Incident truly identifiable seen as Zombies.