He showed jurors the weapons found on the shooting suspect, Robert Stewart, when the killing spree ended.
A 12-guage shotgun and two handguns along with a pocket knife and several bullets were found on Stewart's pockets and in a bag around his neck.
Jurors were shown close-up photos of nearly every victim -- seven elderly residents, mostly slumped over in their wheelchairs. One was killed while in bed and another was found on the floor -- knocked out of his wheelchair from a shotgun blast to the back.
Family members sobbed and wiped away tears as they saw images of how their loved ones were killed.
Prosecutors say Stewart intended to kill his wife, who worked at Pinelake, and took out anyone who was in his path. Last week a neighbor testified that he called her a couple of days before the shooting saying his wife left him and that it would be the last time. He also told the neighbor make sure they know it would be the last time.
Stewart's attorneys say he was prescribed a dangerous mix of too many sleeping pills and anti-depressants, he didn't know what he was doing and he doesn't remember the shooting.
His estranged wife, Wanda Stewart, is expected to take the stand as early as Tuesday.