The 19-year-old is charged with killing 46-year-old Angie Dixon during a robbery in her east side apartment last June.
Deputy Prosecutor Kyle Phernetton tells us Marsh's two co-defendants, Brandi Philips and Blake Fisher, have said he did it.
The prosecution rested about 2 p.m. today. Phernetton says the defense did not present any evidence and rested soon after that.
The judge also dismissed the conspiracy to commit armed robbery charge today.