CHICAGO—The American woman accused of helping to kill her mother and stuffing her body in a suitcase during a luxury vacation to Bali nine years ago changed her plea to guilty in Chicago federal court on Friday. Heather Mack, 27, was convicted in Indonesia in 2015 of being an accessory to Sheila von Wiese-Mack’s murder…

WORCESTER, Mass.—Nine years after the body of 5-year-old Jeremiah Oliver was found in a suitcase beside a Massachusetts highway, the former boyfriend of the child’s mother will be arraigned Thursday on a murder charge in connection with the death, prosecutors said. Alberto Sierra Jr., 32, is charged with murder and disinterring a body and will…

PHILADELPHIA—A Pennsylvania man admitted packing explosive materials, fuses, and a lighter in a suitcase he checked for a commercial flight to Florida and fled the Lehigh Valley airport when he feared arrest, federal authorities said in a court document filed Thursday. Marc Muffley, 40, of Lansford, called his girlfriend for a ride when he heard…

A boy found dead inside a suitcase last spring in rural southern Indiana has been identified as a 5-year-old from Georgia, and police said Wednesday that the child’s mother and another woman are suspects in his death. The boy was identified as Cairo Ammar Jordan of Atlanta, Georgia, said Sgt. Carey Huls of Indiana State…