Authorities are looking for a Florida quadruple amputee in connection with the murder of his parents.

Sean Petrozzino, 30, is on the run and considered armed and dangerous, authorities say. He went missing after his parents were found fatally shot in their home, and he is believed to be driving his father’s red Toyota Camry.

Petrozzino has two prosthetic legs and no hands. He became an inspiration in his community as a teenager when he kept smiling after losing his limbs to bacterial meningitis.

At the time, the South Florida Sun Sentinel called him perky, silly and polite.

Back in 2000, he told the paper, “Lots of important things in my life just happened by chance. You know someone and get a job that makes you millions of dollars, or you get a disease. There doesn’t seem to be any reason some things happen.”

Authorities say Petrozzino had moved back in with his parents a week before the murder after separating from his wife.

They say he may be heading down to South Florida, where he grew up.

Petrozzino’s mother, Nancy , was an elementary school teacher. His father, Michael, was a costumed character at Disney World.