SPANGLE, Wash. -

A six-year-old boy originally from Spangle fighting a deadly disease got the chance to live out his dream of being a police officer when he was made a member of the Pima County Sheriff's Office SWAT Team for the day.

Moses Thompson is from Spangle but is living now in Tucson, Arizona with his mom. He's fighting an inoperable tumor that's affecting his digestive system. Doctors originally thought it was lymphoma but haven't been able to fully diagnose him. Several years back it was so bad he was even in hospice.

David Ladines, Moses' grandpa, is a pastor in Spangle and said his grandson always talks about how much he wants to be a police officer. So this week he got the opportunity to serve with the Pima County Sheriff's Office SWAT Team for a day. They picked him, got to check out the Black Hawk helicopter they used and helped them arrest some bad guys.

Ladines said that one day meant the world to Moses.

"Kids that have terminal cancers and diseases, they need a reason to fight. You know, they need hope. And you can just see that life and excitement in his eyes again, getting a chance to do something like that," he said.

Moses will soon be admitted to the National Undiagnosed Disease Program in Bethesda, Maryland where the doctors will treat and try and cure him. His family is now waiting for the go ahead to move to the East Coast so he can get into the program.