Roy Kipp, the retired sheriff's officer facing the death penalty for shooting his wife and her lover, wiped away tears as prosecutors showed jurors a videotape of the gruesome crime scene Thursday.

The tape, shot by investigators hours after the May 20, 2000 double-murder in Naples, Fla., showed the body of Kipp's wife, Sandy, splayed face down on her apartment's front stoop, her blond hair stained black by the pool of blood around her head. The camera then panned inside where the body of her lover, Jeff Klein, pierced by eight bullets, rested against a bedroom door frame.

Kipp, whose lawyers claim he has suffered major depression and post-traumatic stress disorder since the shooting, shielded his eyes with his hand and stared at the defense table.

Prosecutors allege the 44-year-old killed his estranged wife and Klein, a one-time friend and co-worker of his, because he was furious she was leaving him. They are seeking two first-degree murder convictions against Kipp, a former Collier County sheriff's lieutenant.

Kipp's lawyers acknowledge their client pulled the trigger, but told jurors he acted in the heat of passion after catching the victims in a "compromising position." They also claim Kipp shot in self-defense after Klein pulled a gun and have suggested officers transferred the gun to the deputy's locked truck as part of a cover-up.

Klein's loaded .40-caliber off-duty weapon was found in a fanny pack in his maroon pick-up truck and returned to his family. The murder weapon, a 9 mm gun, has never been found.

A crime scene investigator testified Thursday that blood splatter evidence and trajectories indicated Kipp kept shooting even when Klein posed no threat. Lt. Mike Gawlinkski, of the Collier County Sheriff's Office, testified that even after the deputy was struck in the chest and sunk to the carpet, the shooter continued firing at his immobile body.

"There were some shots fired while (Klein) was laying on the ground," Gawlinkski said.

A string of other crime scene investigators testified Thursday. Under questioning by the prosecution, they described finding bullets and shell casings throughout the two-bedroom apartment, dusting for fingerprints and sending evidence to a laboratory for testing.

On cross-examination, the defense repeatedly grilled the officers about whether they had touched Klein's body or found his gun in the apartment. The sheriff's officers all denied seeing any weapon at the crime scene or moving his body.

Gawlinkski said any attempt to remove a gun from Klein's hands, which were pinned under his body, would likely result in tell-tale drag marks on the carpet. Pressed by defense lawyer Michael Orlando to admit taking the gun without leaving a trail was possible, the lieutenant said, "I could say they were very good if they pulled something out from underneath the body."

The lawyer also questioned officers about Klein's keys, which the defense has implied officers used to hide the gun in the deputy's car. Two officers acknowledged saying during a deposition that Klein's keys were on a table, not on the Yahtzee box where photographs show them, but both said they were mistaken and had corrected their testimony later.

One of those officers, senior crime scene investigator Robert Thorman, said he searched the interior and exterior of Kipp's truck, but acknowledged he had only processed the outside of Klein's vehicle, where the deputy's off-duty gun was later found.

"How difficult would it have been to pick (Klein's keys) up and go out and process the truck," Orlando asked.

"Not too difficult," Thorman admitted.

Testimony in the case continues Friday morning.