Jurors were told Sibley, then the state's interim chief medical examiner, also wrote “it is conceivable that involuntary movements may be perceived as a continued threat.”
Ersland insisted in media interviews he shot Parker again because the masked robber was getting up. Ersland is not expected to testify at the trial.
Recordings from security cameras inside the pharmacy do not show Parker again after the robber falls.
An Oklahoma City police detective, Ryan Porter, testified Tuesday that
The detective said Ersland also carries the just-fired revolver in his nonshooting hand as he walks over Parker to get the second gun.
Under defense questioning, the detective acknowledged that Ersland “wouldn't be here today” if the two robbers had not entered the drugstore.
“There would not be a case going on right now, that's correct,” Porter said.
Admitted into evidence Tuesday were both guns Ersland fired inside the pharmacy: a Taurus Judge revolver and a semi-automatic Kel-Tec handgun. District Attorney David Prater held up the unloaded weapons one at time and walked in front of jurors so they could get a closer look.
Ersland, of Chickasha, faces life in prison or life in prison without the possibility of parole if convicted of murder.