MILWAUKEE (AP) – A Milwaukee couple who authorities say had been arguing as they drove down U.S. Highway 45 face homicide charges in the death of a motorcyclist that shut down the freeway north of Milwaukee for several hours on Saturday.

The Milwaukee County Sheriff’s Department said the initial investigation found that the 27-year-old Milwaukee woman was arguing with her 29-year-old husband as she drove north. It said she lost control of her car and crashed into an SUV on the car’s left side, then a motorcycle on the right.

The sheriff’s department said the impact caused the motorcycle to explode and sent the motorcyclist off a bridge and onto a parkway underneath. The motorcyclist, a 54-year-old West Milwaukee man, was declared dead at Froedtert Hospital.

The car rolled over three times after the accident. The driver and her husband were taken to Froedtert Hospital for treatment. Nobody in the SUV was injured.

Authorities said they suspect inattentive driving led to the wrecks.

The man was released from the hospital and taken to jail to await possible charges of homicide by negligent operation of a motor vehicle. The driver was expected to face the same charge after she was released from the hospital and taken to the jail, the sheriff’s department said.

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