Here is the latest Iowa news from The Associated Press at 3:40 a.m. CDT

UNDATED (AP) — Police in an Iowa college town had repeated interactions with a troubled drifter in the weeks between his release from prison and his alleged killing of a star student golfer from Spain. Ames police reports show that 22-year-old Collin Richards struggled with drug and alcohol abuse, mental health problems and homelessness after he got out of prison in June. He is charged with first-degree murder in Monday’s killing of Iowa State University student Celia Barquin Arozamena.

CEDAR RAPIDS, Iowa (AP) — Federal prosecutors in eastern Iowa have announced prison sentences for two farmers convicted in separate cases. Prosecutors say 36-year-old David Pitz, of Elma, has been sentenced to 10 months behind bars for using farm profits for personal expenses instead of paying off his loan. In a separate case, 36-year-old Mark Laubenthal, of Bancroft, has been sentenced to a year in prison for lying to his bank about how much land he was farming and how much crop he had in storage.

WASHINGTON (AP) — The Pentagon says the remains of three U.S. Marines killed when their helicopter was shot down during the Vietnam War will be buried next week at Arlington National Cemetery. The Defense POW/MIA Accounting Agency announced Friday that the helicopter’s pilot and two infantrymen will be buried as a group with full military honors next Thursday. One of the men was from Davenport.

ELDORA, Iowa (AP) — The Iowa worker safety agency proposes fining the state’s Human Services Department, saying the department’s school for delinquent juveniles isn’t protecting employees. The Des Moines Register reports that school residents assaulted staffers at the Iowa State Training School for Boys in Eldora during at least three incidents. The Iowa Occupational Safety and Health Administration has proposed more than $23,000 in fines for the department.