Update -- Tuesday, 5:00pm

Court is in recess until 9:00 Wednesday morning. Prosecutors ended the day by calling a crime scene investigator to the stand at 4:45. He testified for only a few minutes about how Gentry's car contained absolutely no evidence of the crime. Prosecutors say that's because Gentry wiped everything down after the murder, destroying evidence.

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Update -- Tuesday, 4:00pm

Defense attorneys are cross-examining Detective Relph, asking him specifics about the investigation -- including details on how they go about collecting evidence and writing reports.

They also question him about the specifics of Gentry's confession and details of Robinson and Burnett's involvement in the case.

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Update -- Tuesday, 3:00pm

Detective Tim Relph is still on the stand. He recounts how Gentry told him Burnett first had doubts when he learned the person he was hired to kill was a pregnant 14-year-old girl. Gentry told Relph that Burnett smoked some crack-cocaine, then mustered up the resolve to go through with the plan.

Relph says Gentry confessd to how Brooks was strangled between Greenwich Rd and Andover Rd, after Gentry tapped Burnett on the knee. He told Relph that Brooks screamed out "Everett" as Burnett quickly pulled back on the cord around her neck. They buried Brooks' body in Butler County.

Relph says Gentry's story when he was first arrested was absolute denial, followed by a confession where he claimed to be a middle-man with marginal involvement. By 2008, Gentry had confessed to being a major player in the orchestration and execution of Brooks' murder. Relph says what NEVER changed was the testimony that Robinson was the mastermind, that Gentry drove the car the night Brooks died, and that Burnett actually strangled her.

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Update -- Tuesday, 2:30pm

Relph says in early 2008, he was contacted by the District Attorney's office regarding a request by Gentry to speak with authorities again.

Relph says during an interview from jail, Gentry told him he did not want to "pervert justice" by withholding important details in the case. Relph says Gentry went into greater detail about how the plot to kill Brooks unfolded. Relph says Gentry told him there was significant pre-planning, including a discussion on how she should die. Stabbing and shooting seemed too messy, so strangulation was settled on as the best means.

Gentry says he helped broker a deal between Robinson and Burnett, and actually tapped Burnett on the knee during the car ride to Butler County, signalling when he was to strangle the girl.

Relph says Gentry also confessed to helping search for multiple gravesites, even contemplating one behind homes near a railroad track next to the McDonald Golf Course. Relph says Gentry told him they abandoned that location because it was too close to homes and they might get caught. Prosecutors shows photos of the abandoned first gravesite to jurors.

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Update -- Tuesday, 2:00pm

Relph testifies about how WPD obtained the cell phone records from Marissa Drydale's phone, which Chelsea was using the night she died, and the cell phone that belonged to Everett Gentry. In comparing the two, police realized the two phones were bouncing off the same towers as the two drove from south Wichita towards Butler County.

Relph says he showed the evidence to Gentry, who asked if police had talked yet with Robinson. Relph says he calmly told Gentry they'd get to Robinson later, but that Gentry needed to explain how he could claim to know nothing about Brooks' disappearance when it was clear the two were together that night.

Gentry ulimately confessed to the crime, originally saying he put Robinson and Theodore Burnett in touch with each other to work out a plan, and that Gentry drove the car as Burnett strangled Brooks from the back seat of his car.

Relph says during Gentry's confession, Gentry said Robinson had entrusted him with his life... that if Brooks was not killed, Robinson would go to prison for child rape charges.

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Update -- Tuesday, 1:30pm

Court resumes after lunch. Prosecutors call Wichita Police Detective Tim Relph to the stand. Relph was the detective on the scene after Brooks body was found, and the man who Gentry confessed to after learning police had phone records that put him and Chelsea Brooks together the night she died.

Relph's testimony will mirror much of what Everett Gentry told jurors on Friday and this morning. Relph's review of the case and crime scene could help add credibility to the details of Gentry's confession.

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Update -- Tuesday, 11:30am

After defense attorneys finish questioning Gentry, prosecutors take a few moments to reiterate that three important details of Gentry's testimony have never changed: Gentry has always claimed Robinson was the mastermind; Gentry has always said he was the driver the night Brooks died; Gentry has always said Burnett was the man to actually strangle Brooks from the backseat of the car.

Prosecutors maintain the changes in Gentry's testimony serve only to further incriminate himself. Gentry told the jury he originally downplayed his own role in the crime, but later felt it was important to come clean. Although Sylvester says he tried to negotiate a better plea deal for Gentry, he says the DA's office stood firm on its offer of 25 to life. However, they agreed not to charge Gentry with Brooks' kidnapping.

After Gentry, prosecutors call his attorney to the stand. Brad Sylvester represented Gentry and was with him when he accepted a plea deal in exchange for testimony. Sylvester said the evidence against Gentry was strong, and a jury would have likely found him guilty if he had proceeded to trial.

Trial is in recess for lunch at noon and will resume at 1:30.

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Update -- Tuesday, 9:30am

After a brief delay this morning, court resumes with Everett Gentry back on the stand. Today is the chance for defense attorneys to cross-examine Gentry's testimony to prosecutors and jurors on Friday.

Robinson's attorneys begin by tracing Gentry and Robinson's friendship as young teenagers. After about five minutes, the conversation moves to Gentry's arrest after Brooks' murder.

Defense attorneys question how Gentry at first lied about having any knowledge of Brooks, her whereabouts, or her death. Gentry later changed his story when detectives showed him cell phone records that could put him and Brooks in the same vicinity of each other at multiple points between Skate South, where Brooks disappeared, and rural Butler County where Brooks' body was found.

Defense attorneys say Gentry's story has evolved over the years. In January 2007 and March 2008, Gentry gave authorities additional information -- including expanded details of his participation in the murder, and additional gravesites that were considered for Brooks' body.

Defense attorneys also recount how Gentry was offered a plea deal in exchange for his testimony. Rather than serve anywhere from 40 years to life in prison for Brooks' murder, prosecutors will recommend 25 years to life when Gentry is sentenced after Robinson's trial.

Defense attorneys use transcripts to show Gentry and jurors how his story has changed from time to time. An example includes how when Gentry confessed, he told authorities the plan to kill Brooks came up the night she died after Robinson called him and asked him to get rid of her.

In later testimony, Gentry said the plan was hatched weeks before her death and carefully orchestrated -- with the decision made to strangle her because it was less messy than shooting or stabbing her.

By calling into question the details of Gentry's various accounts of the murder, as well as his plea agreement with prosecutors, defense attorneys hope to discredit his testimony to jurors. As in Burnett's case, Gentry's testimony is the strongest evidence prosecutors have against Robinson. Although defense attorneys agree significant physical evidence -- like DNA -- exist to link Robinson to Brooks unborn baby, they say there is little -- if any -- direct evidence to show he was involved in the plot to kill her.

Gentry's cross-examination is expected to last two hours, possibly longer.

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It's day four in the trial against Elgin "Ray" Robinson, 22, charged with capital murder in the 2006 kidnapping and death of 14-year-old Chelsea Brooks. Brooks was nine months pregnant with Robinson's baby.

Prosecutors say Robinson hired two men to kill Brooks so he could avoid child rape charges. Patertnity tests after the baby was born would prove he was the father.

On Friday, co-defendant Everett Gentry took the stand. Gentry pleaded guilty to capital murder shortly after his arrest in 2006. He said Robinson enlisted him to kill Brooks. Gentry, a drug dealer, said he then turned to client Theodore Burnett for help. Gentry said Robinson paid a mix of cash and drugs to have Brooks killed by the two men. A jury found Burnett guilty of capital murder this spring. He is now serving life in prison.

Defense attorney Val Wachtel will begin today by cross-examining Gentry on the witness stand. He will be looking for holes in the teenager's story. Wachtel says Robinson was not involved in Brooks death. He says Robinson was out of town the night Brooks died, and was stunned to learn of her murder when her body was found a week later. Robinson will have an opportunity to present his full defense after the prosecution rests.

Stay with KAKE News and KAKE.com for updates through the day.

Viewers with questions about the case can email Cayle Thompson at cayle.thompson@kake.com.