Story highlights Police are looking for Sean Petrozzino in the deaths of his parents

Michael and Nancy Petrozzino were found fatally shot at their Orlando home Tuesday

Officials say Sean Petrozzino has a weapon and should be considered dangerous

He was last seen in a red 2012 Toyota Camry with Florida tags and is thought to be in S. Florida

Police were searching for an amputee Thursday after the shooting deaths of his parents in Florida.

Investigators with the Orange County Sheriff's Office found Michael Petrozzino, 63, and Nancy Petrozzino, 64, fatally shot Tuesday at their Orlando area home after Nancy failed to report to the elementary school where she taught.

Homicide detectives have released a surveillance photo of Sean Petrozzino taken Tuesday morning by a Wells Fargo ATM in Orlando and are calling him a "person of interest" in the slayings. In the photo, he appears to be clutching cash with the end of his arms, which end near his wrists. He stands on prosthetic legs.

Officials have declined to call Petrozzino a suspect but say he may have a weapon and is considered dangerous. He was last seen in his parents' vehicle, a red 2012 Toyota Camry with Florida tags, and is thought to be in South Florida.

"Please note for identification purposes, the physical characteristics of his hands," the Sheriff's Office said in an advisory.

Sean Petrozzino was last seen Tuesday.

CNN affiliate WFTV said Petrozzino , 30, lost portions of his limbs as a child because of bacterial meningitis. The station reported that neighbors said he had recently moved in with his parents after having financial troubles.

Michael Petrozzino worked at Disney World, and Nancy Petrozzino taught second grade for 10 years at Andover Elementary School in Orlando.

"We're at a loss. She was very well-liked," Orange County Public Schools spokeswoman Kathy Marsh said.