death

Memorial services for the pair took place Dec. 23.

Speed, cell phone use and driver inattention on the part of Doyle are being investigated as possible contributing factors.

The animals' owner later took them to a veterinarian for evaluation.

The driver of the Peterbilt was not injured in the wreck.

Since 1992, the state has seen an average of 33 workplace fatalities each year.

The driver lost control on the icy road and the Ford exited the interstate to the right, then went into a slide before rolling once.

The sheriff's office has thus far declined to detail the nature of the medical emergency suffered by Griffiths.

The driver overcorrected, causing the combination unit to roll onto the driver's side.

Further details were not immediately released.

Kelley had been traveling on foot, according to the sheriff's office.