The Pennsylvania SPCA released the photo of that suspect, Tyrique Hall, on Thursday.
Investigators say Hall is a black male standing 6'3" tall and weighing 200 pounds. His last known location was at 5204 North 3rd Street.
Hall is believed to be wearing a dark colored jacket, dark colored workout pants with a white stripe, and red sneakers.
A $500 reward is being offered just for Hall's arrest. A $2,000 reward is being offered for his arrest and conviction.
An eyewitness told the PSPCA she saw a cat in flames running down 3rd Street towards Wellens Avenue in Olney at approximately 9:25 a.m. Sunday.
She said she saw two men at the intersection and heard one of the men saying, "I put a lot of fluid on it."
The male cat, named Campbell, was found in front of 331 W. Wellens Avenue.
The cat is now being treated at the PSPCA shelter hospital.
Anyone with information is asked to call the PSPCA cruelty tip line at 866-601-SPCA or their local police department.