The Manifest is a key item in Dead Rising 3. It can only be obtained through using Smartglass. While Nick is going through Brad Park's stuff during Person of Interest, he comes across this manuscript, which is a shipping manifest from Collins Chemical. This coincides with what occurs in Poison Payload since, at the time, it's believed that Brad is responsible for poisoning a shipment of Zombrex, which is being contained in a van at Collins Chemical. However, much later, it's revealed that the Zombrex was not poisonous, and that Brad's plan was to hand them out to the illegals.