NEW ALBANY, Ind. -- The prosecution in the David Camm murder trial offered up another possible motive for the crime Thursday.

DAVID CAMM TRIAL Slideshow: Images From Trial Vote: Do You Agree With Verdict? Vote: What Sealed His Fate? Vote: Camm's Testimony Hurt Or Help Case? Your Thoughts: Reaction To Verdict See Who's On The Jury Who's Who In Camm Trial VIDEO 4/11: Family Reacts To Sentencing 4/11: Jurors React To Sentencing Exclusive:Camm Home Videos Camm Sentenced Thursday 3/20: Siblings Speak Out 3/19: Camm Describes CPR 3/19: Detectives Grill Camm 3/18: Jurors Speak Out 3/18 - Videotape: Police Interrogate Camm 3/18:Hear Camm's Call to Police 3/18:Emotional Reaction To Verdict 3/17:Camm's Sister Reacts To Verdict 3/17: Live Report Following Verdict 3/15:Lawyers Present Closing Arguments 3/13:Lawyers Prepare Closing Arguments 3/11:Camm Wraps Testimony 3/8:Camm Grilled About Affairs 3/8: Camm Acts 'Strange' On Stand 3/7:Camm Sobs On Stand 3/6: Prosecutors Grill Defense Expert 3/5: Defense Expert Cross-Examined 3/4: Lawyers Talk About Upcoming Camm Testimony 2/28: Camm's Uncle Testifies 2/27: Alarm Company Official Takes Stand 2/21: Prosecutors Rest Case 2/21: Defense Grills Englert -- Again 2/20: Defense DNA Expert Testifies 2/19: Expert's Credibility Questioned 2/14: No Gunshot Residue Found 2/12: Camm's T-Shirt Scrutinized 2/8: DNA Expert Testifies 2/7: Jurors Look At Bronco 2/6: Did Camm Contradict Himself? 2/5: Kimberley Camm's Last Moments 1/31:Camm Trial Continues 1/30: 9 Women Take The Stand 1/29: Camm's Ex-Lovers Testify 1/28:Jury Visits Crime Scene 1/24:Jurors Tour Gymnasium 1/22: Evidence Technician Takes Stand 1/17: Jurors Watch Videotape 1/15: Investigator Takes Stand 1/14: Prosecutors Reveal Evidence 1/9: Hear What Camm Said

Camm, a former Indiana State Police trooper, is charged with killing his wife, Kimberly, and his two children, Bradley and Jill, in their Georgetown, Ind., house in September 2000.

Camm's uncle, Sam Lockhart, was back on the stand Thursday morning.

On cross-examination, prosecutors asked Lockhart (pictured, right) about a possible land deal that he was involved in at the time of the murders.

Prosecutors believe that Camm was also involved in the $300,000 deal.

Defense attorneys told NewsChannel 32's Abby Miller that prosecutors are trying to prove that Camm killed his family to get insurance money that would allow him to get in on the land deal.

"Well let's see, I'm trying to figure out if that's motive No. 4, or motive No. 4 sub-part 4," defense lawyer Mike McDaniel said.

Lockhart denied that Camm was ever involved in any aspect of the deal, which collapsed after the murders.

"David didn't have any interest in this," McDaniel said. "Probably, by the time his family was murdered it was apparent that it was a busted deal."

Prosecutors said that they received a call from the land owner Wednesday saying that Camm visited him the day of the murders.

Miller reported that prosecutors are trying to tie the land deal together with insurance policies that Camm had updated months before his family was killed.

"He certainly seemed to want to get his hands on some money, I mean there's plenty of money available, $681,000," lead Prosecutor Stan Faith said. "I mean that can be motive without a land deal."

Miller reported that forensic scientist who did tests on the T-shirt Camm wore on the night of the murders also took the stand Thursday.

"I think you're going to see a scientist in action here today, not Barnum and Bailey," McDaniel said, referring to two of the prosecution's experts.

The defense expert testified that the blood on Camm's shirt was not a high-velocity pattern that would have come from firing a gun," Miller reported.

"He's the only person who has the sense to put on the T-shirt to show you how it hangs and how it could not have been high-velocity blood splatter on this portion of the shirt," McDaniel said. "When you put it on, the area on the shirt that they're claiming is velocity splatter is on the back, or at least on the side."

"I think in this particular case he has a bias," Faith said. "He's not neutral. He's representing the defendant."

Miller reported that the judge warned the courtroom spectators about their behavior Wednesday.

Faith got into a verbal argument with one of Camm's family members in the courtroom hallway, Miller reported. Faith accused the family member of trying to intimidate him with some of his actions.

The judge acknowledged that it had been a long trial and tempers were short, and asked for everyone's patience, Miller reported.