User blog comment:Nickjaro/Dead Rising Beta????/@comment-646133-20100719060901

Um, all I know is that:
 * Natalie and Jeff appear in Entrance Plaza
 * Rachel and Alan appear in McHandy's Hardware (located in Entrance Plaza instead of Al Fresca Plaza) in the scoop A Woman With Secrets
 * Isabela apparently clears the EP of zombies with a giant gun (see her page, the gallery section)
 * Jessie is killed by zombies in the Maintenance Tunnels (see her page, trivia section, for a link to video
 * I remember seeing a video of Frank in the supermarket with a blonde girl, who randomly dies

That's all I know/saw of Dead Rising beta.