Transcript for Somber homecoming for Army soldier killed in Afghan insider attack

the return of a fallen soldier, a hero, making his way home to Utah. Army major Brent Taylor, a Utah mayor and father of seven, was killed on his fourth tour of duty overseas. Tonight, what his heartbroken wife said about him coming home on this day, election day. Here's ABC's chief global affairs correspondent Martha Raddatz tonight. Reporter: In the pre-dawn darkness, a somber homecoming for army major Brent Taylor, on this day Americans exercise their right to vote. His wife Jennie, shattered yet stoic. It seems only fitting that Brent has come home to U.S. Soil in a flag-draped casket on our election day. Reporter: Taylor, killed in an insider attack, one of nearly 2,300 Americans killed in Afghanistan. But his story has struck a chord with so many. A Republican mayor, a father of seven. The oldest, Megan, 13, then Lincoln, Alex, Jacob, Ellie, Jonathan, little Caroline just 11 months. The public servant from Utah hailed as a hero when he deployed for the fourth time in January. His life's mission, to bridge this nation's divide. Taylor's wife today quoting his last Facebook post -- Whether the Republicans or the Democrats win, I hope that we all remember that we have far more as Americans that unites us than divides us. Such an incredibly sad story, but a powerful message there today. We know his two older children were there. The rest of the children are so young. But the community is planning to have a service this weekend? Reporter: They'll have a memorial service in north Ogden, but David, this is such a reminder, his commitment to country, his commitment to service. It shows us the true meaning of sacrifice and service. Really lands on this election day, too. Martha, we'll see you here for election night.

This transcript has been automatically generated and may not be 100% accurate.