Mark Bradson is a Phenotrans scientist and researcher as well as one of the psychopaths in the video game; Dead Rising 2.
Dead Rising 2
Together with Pearce Stephens, they are heard and seen talking about mature Queens ready for shipping. Bradson tells Stephens to call the head doctor to tell him that they are ready to harvest the shippings. Stephens pulls out a phone and calls the doctor and tells him the news while typing on a computer. As Chuck calls out to them as "pointdexters" the two men each grab a pistol from the table and aim at Chuck, asking who he is and what he is doing there.
After their defeat Chuck inspects their laptop and tries to use it but it doesn't work because it is password protected. Chuck calls them bastards but takes the laptop as well as a cup of coffee. Chuck comically thanks the deceased scientists for the coffee and then sees Bradson's ID card. He picks it up and then sees a panel with a switch. He pulls it and goes off.