- "Baby girl, you're not gonna use that th-"
- —Leo to Rosita before being blown up[src]
Nothing is known about Leo's life prior to or as the outbreak began.
Leo and Zia are at the warehouse talking about Negan. They investigate the warehouse when Michonne accidentally alerts Leo to her and Rosita's presence. Leo and Zia fire at Rosita and Michonne before being told by Zia to get the supplies to the sanctuary. After he gets to the truck he is held at gun point by Rosita who is using an RPG. After Leo calls Rosita's bluff on her knowing how to use the RPG, she uses it on him and he is blown up.
He runs into Rosita who has an RPG Launcher on hand and trained on him. He openly doubts her using the RPG on him to which she responds by firing and completely obliterating him.
This list shows the victims Leo has killed:
- Possibly numerous counts of zombies and unnamed people