Here is the latest Iowa news from The Associated Press

CHANHASSEN, Minn. (AP) — The National Weather Service has issued winter storm warnings and watches for a large part of southern Minnesota, eastern South Dakota and western Iowa ahead of a strengthening storm system. The snow is expected to start falling early Monday in southwestern Minnesota and nearby parts of South Dakota and Iowa, then spread north and east through Tuesday.

DES MOINES, Iowa (AP) — Authorities are investigating a shooting that killed one man and injured another in downtown Des Moines. Police say 21-year-old Edmanuel Perez died and 23-year-old Andrew Hurley-Boyd was hospitalized in the shooting. Officers responded to the incident around 1:10 a.m. Sunday in the city’s popular Court Avenue district.

WATERLOO, Iowa (AP) — Voters in Waterloo will pick a new mayor and city council member in a runoff election. The Waterloo-Cedar Falls Courier reports that Quentin Hart and Tim Hurley are both running for mayor. The candidates have waged a civil campaign and agree on many issues, but they say voters have a distinct choice when they head to the polls for Tuesday’s runoff elections.

AMES, Iowa (AP) — A person briefed on the decision tells The Associated Press that Toledo coach Matt Campbell will be Iowa State’s new football coach. The person spoke on condition of anonymity because an announcement was still in the works, though one was expected Sunday. At Iowa State, the 36-year-old Campbell will replace Paul Rhoads.

DES MOINES, Iowa (AP) — Iowa’s crackdown on prescription painkillers is pushing more abusers to heroin, spurring a deadly new wave of addictions that experts say has reached epidemic proportions. The Des Moines Register reports that although heroin still lags far behind marijuana, methamphetamine and painkillers as Iowa’s drug of choice, its use is climbing quickly — with deadly results.

Experts say the heroin epidemic, which is a growing problem nationwide, is largely spurred by people who first become addicted to prescribed opiate pain medication. As the pills become more expensive and harder to obtain, people move on to heroin, which is cheaper and provides a more potent high.

Mike Polich of United Community Services in Des Moines says heroin is coming to the city from places like Chicago, Omaha and Texas.

The Cass County Board of Supervisors, Monday morning, are expected to act on authorizing Board Chair Frank Waters to sign a voter-approved 28-E Unified Law Enforcement Agreement that adds the City of Marne to the Unified District that already includes Cumberland, Lewis, Massena and Wiota.

In other business, the Board will discuss and possibly act on approving a telephone-based emergency paging system in the courthouse. Representatives with Access Systems will be on-hand to answer questions.

They’ll also discuss an Ordinance authorizing the operation of all-terrain vehicles and off-road vehicles on county roadways and trails, and, act on allowing or dis-allowing military exemptions and homestead credit applications (including Disabled Veteran’s Homestead Tax Credits).

The Cass County Board of Supervisor’s meeting begins at 8:30-a.m., Monday.