A meth kingpin from Iowa who was convicted of killing two young girls and three adults is scheduled Friday to become the third federal inmate to be executed this week, following a 17-year pause in federal executions.

Dustin Honken, 52, was sentenced to death for killing government informants and children in his effort to thwart his drug trafficking prosecution in 1993.

Honken is set to die by a lethal injection of the powerful sedative pentobarbital at the federal prison in Terre Haute, Indiana, where he’s been on death row since 2005. His lawyers are making last-minute pleas for a reprieve, but their chances of success seem remote after the Supreme Court reversed lower-court orders that sought to block the executions of two other men this week.

Over recent days, prison authorities permitted Honken to make his last calls to family and friends, according to Sister Betty Donoghue, a Catholic nun whom he called Wednesday.

(more at apnews.com)