A family in Oklahoma is shocked this week after they noticed what they believe is the ghost of their son in a photo of their niece. The boy was killed earlier this year when a tornado ripped through his school, Fox News reported on Sunday.

Scott McCabe’s 9-year-old son Nicholas was killed on May 20 when a tornado leveled the Plaza Towers Elementary School in Moore, Oklahoma. Nicholas and seven of his classmates died.

McCabe says that the ghost of his son can be seen in a photo taken on Independence Day of his niece Madison. Madison is pictured playing with sparklers. Above her head is a distorted image of a face. The McCabe family believes it is the ghost of their son Nicholas.

“I couldn’t believe what I was seeing. Nicholas loved the Fourth of July and he loved firecrackers. My brother, when he saw it, he said the hair stood up on his neck. I was in awe. It touched my heart,” Scott McCabe told Oklahoma News 9 in an interview last week.

According to McCabe, Nicholas was buried in his a Plaza Towers T-shirt and he is convinced the figure in the photo is wearing a red shirt.

Some people are skeptical of the photo and say it is nothing more that motion blur caused from the camera being shaken. McCabe believes it is proof that his son is watching over their family.

“It’s obviously not Madison. It’s obvious there are two people there or one person there and one spirit there. They can say what they want. I believe. I believe he’s watching over us,” McCabe said.

The tornado that struck Moore, Oklahoma was one of the deadliest tornadoes in US history, killing 25 people, and injuring hundreds.