PHILADELPHIA (January 23, 2013)--The reward for information in the murder of a 35-year-old pediatrician who was found bound and burned inside her home in downtown Philadelphia grew Wednesday to $35,000.

Firefighters who responded to the home Monday afternoon found Melissa Ketunuti's body on fire in the basement.

Her ankles and wrists were bound and there was a rope around her neck, which led police to believe she was strangled.

Police said Wednesday that the Citizen's Crime Commission will administer $15,000 offered by private donors, which will be added to the $20,000 offered by police for arrest and conviction in a homicide.

Ketunuti was a second-year infectious diseases fellow and researcher at Children's Hospital of Philadelphia.

Police say they don't know whether she knew her killer, but there were no signs of forced entry