Granger Smith

The couple traveled to a poignant city in their history to celebrate his milestone day.

It's all in memory of sweet River.

"The full gamut of emotions today," Amber says.

The Smiths are navigating their loss — and their grief — as a family.

Smith wrote the song "Heaven Bound Balloons" just weeks before his youngest son's tragic death.

Amber Smith calls her son River "our tiny, red-headed hero."

As the days on the calendar pass since the tragic death of their 3-year-old, the couple has found comfort in their heavenly Father.

"You're not going to replace the loss, ever."

He had a special light around him, she shares.

He admits a part of him would like to just disappear.

She's been seeing and feeling him all around.

"This is just the beginning," the singer vows.