Olathe ? Six men and six women finished their first day of deliberations Monday evening in the multiple-murder case against John E. Robinson Sr. without reaching a verdict.

In closing arguments, prosecutors described Robinson as “sinister” and a man who placed no value on the lives of the three women he’s accused of killing.

“Now’s your opportunity to hold the defendant accountable for what he’s done for all these years,” Johnson County Dist. Atty. Paul Morrison told jurors. “I hope you do.”

Jurors began deliberations at 11:30 a.m. and concluded at 7 p.m. They were sequestered for the night and will resume work at 9 a.m. Tuesday to decide if Robinson is guilty of capital murder for the deaths of two women found in 85-gallon barrels on his property in rural Linn County, 60 miles south of Kansas City.

“These are trash barrels for John Robinson. They are tombs for the victims,” Morrison said, gesturing to the yellow containers in which the bodies were found.

Sean O’Brien, one of Robinson’s four attorneys, acknowledged Robinson engaged in sadomasochism with the women and had numerous affairs while married but suggested the evidence pointed to other people.

He reminded jurors that an unidentified fingerprint was found on a roll of duct tape discovered inside Robinson’s Linn County trailer. Tests also revealed that blood from one of the victims was on the tape.

The print, O’Brien said, could be identified by using yet-to-be developed crime tools that could exonerate Robinson.

“What if the owner of the print is found and it causes us to think about these crimes in a different way?” O’Brien said.

Defense attorneys never admitted Robinson’s guilt but suggested that others may have been involved, citing the size of the barrels and complexity of the means used to conceal the crimes.

Robinson, 58, is charged with capital murder for the deaths of Suzette Trouten, 27, and Izabela Lewicka, 21. A first-degree murder charge stems from the death of Lisa Stasi, 19, who disappeared in 1985 and has never been found.

Robinson’s wife, Nancy, and his two daughters sat behind him Monday in the courtroom. Relatives of Trouten and Stasi sat behind prosecutors.

In Missouri, Robinson awaits arraignment on capital murder charges in the deaths of Beverly Bonner, 49, of Cameron, Mo., and Sheila Faith, 45, and her daughter Debbie, 16, both formerly of California. Those bodies were found June 5, 2000, in barrels at a storage locker in Raymore, Mo.

Prosecutors said the deaths in Kansas and Missouri are connected and called Robinson a predator who trolled the Internet looking for women to be his sex slaves. He lured some of them to Kansas with the promise of employment, sadomasochist sex or both.

They also claim Robinson schemed to take money intended for the victims by cashing checks in their names after their deaths.

Prosecutors and defense attorneys rested their cases last week. Morrison spent 14 days calling more than 100 witnesses and presenting hundreds of pieces of evidence, including a 39-minute video of Robinson and Trouten engaged in sadomasochistic sex.

By contrast, defense attorneys put on three witnesses before resting, citing a lack of time to present a sufficient defense and their client’s mental state. O’Brien said Robinson had been on suicide watch for the better part of the trial.

Insanity is not a death penalty defense in Kansas.

If convicted of capital murder, Robinson’s trial moves to the sentencing phase, where the defense plans to present evidence that Robinson suffers from mental disease, including a bipolar mood disorder, characterized by pronounced mood swings.

If jurors find Robinson guilty of first-degree murder in the cases of Trouten and Lewicka, Anderson will set a sentencing date and the trial is complete. First-degree murder carries a minimum sentence of 25 years in prison.

Jurors also must decide if Robinson is guilty of lesser charges of kidnapping, interference with parental custody and theft of sex toys from a psychologist with whom he had a sadomasochistic encounter over four days in April 2000.