When the outbreak began, Grace called in all of the plant's shifts to keep it running, later calling in all of their families when things got worse. Due to the abundance of supplies and the sturdiness of the plant itself, the survivors were able to form a safe community with the plant's walls.
During their time together, Matthew and Grace formed a romantic relationship with each other. However, they lacked the infrastructure to properly maintain the plant and one of the reactors melted down, killing all but Grace. Grace, wearing her radiation suit, returned in time to find a dying Matthew in the hallways as alarms blared in the background and tended to him briefly. However, Matthew died and reanimated, forcing Grace to put him down.
Matthew appears as a vision in Grace's dream state. She also has a flashback of finding him dying in the power plant and tending to Matthew before he reanimates, attacks Grace as a walker and she puts him down.
Making their way through Grace's dream state, Grace tells Athena about her father.
Grace tells Morgan that she had to watch Athena's father die of radiation poisoning and that it was long and painful for Matthew.
- Killed By
- Reactor Meltdown (Caused, Alive)
- Radiation Poisoning (Alive)
Following the beginning of the outbreak, the survivors at the power plant lacked the infrastructure needed to properly keep the plant going. As a result, one of the reactors melted down, killing all of the survivors at the plant. Matthew developed radiation poisoning from the meltdown and died shortly thereafter despite Grace's attempts to tend to him. He then reanimated.
- Grace Mukherjee (Zombified)
After reanimating, Matthew attacked Grace and she stabbed him in the head, putting him down.
This list shows the victims Matthew has killed:
- Possibly numerous counts of zombies
- "In Dreams" (Flashback, No Lines)