On Day Five , the prosecution’s witnesses may have helped the defense instead. George Zimmerman’s neighbor testified that Trayvon Martin was on top of George Zimmerman during the scuffle on the night of the deadly confrontation. He also said he believes the voice screaming for help in the dark was Zimmerman’s. Another neighbor testified that Zimmerman looked like he had been beaten up and said he took a cell phone picture of Zimmerman’s bloody head. CNN’s Martin Savidge reports.