Longview fire authorities are looking for suspects after an overnight house fire that looks to be the work of an arsonist. Fire crews were called to the 200 block of Edgefield around 1:30 this morning for a fully involved home. The vacant home was being renovated by the owner and had no electrical power. Investigators say the blaze was started from the inside of the back of the home. The structure was a total loss. Anyone with information on this fire is asked to call the Longview Fire Marshal's office.