'Come back, daddy': Four-year-old boy's heartbreaking plea at grave of Marine father

A clip of a 4-year-old boy who made a heartbreaking plea at the grave of his Marine father on Memorial Day has gone viral.

"I hope for you to come back soon, daddy," Christian Jacobs of Hertford, N.C. said while resting beside his father's grave at Arlington National Cemetery on Monday. Dressed in his own miniature Marine uniform, Christian became emotional while reading his heartfelt message to his dad.

"I love you and hope for you to be here," Christian said.

Marine Sgt. Christopher James Jacobs died in a training accident in 2011, leaving behind his wife Brittany and their son Christian. The Marine served several tours in Iraq and Afghanistan. Christian was only 8 months old at the time of his father's death.

"And he is always watching over me and makes sure. He's proud of me," Christian said.