JIM SUHR, Associated Press

TOPEKA, Kan. (AP) — The Kansas Supreme Court is weighing the conviction and death sentence of a serial killer who stuffed the bodies of some victims into barrels.

The high court heard legal arguments Tuesday involving 71-year-old John E. Robinson Sr. and gave no indication when it may rule.

The Olathe man was convicted and sentenced to die in 2003 in Kansas for the deaths of a Michigan woman and another from Indiana.

He also received a life sentence in Kansas for the murder of a woman whose body was never found. He was sentenced to life terms in Missouri after pleading guilty to five other killings.

Robinson’s attorneys argued Tuesday his conviction should be overturned, citing prosecutorial and juror misconduct. Johnson County prosecutors countered the verdicts and sentences were appropriate.