Police are appealing for the public's help in solving a year-old Dunwoody double murder case.

Firefighters found Roger and Dorothy Abbott dead in their home on Peeler Road on July 1, 2010, after a neighbor noticed smoke coming from the house and called 911. Dunwoody police determined that the Abbotts had been murdered prior to the fire.

Police released a sketch six months ago, by GBI artist Marla Lawson, that shows a thin white man, described as 40 to 45 years old, of medium height and sandy red or brown hair.

Police believe someone purposely set fire to the Abbotts' house to hide the double murder.

Roger Abbott, 82, was an active retiree who participated in a ROMEO group -- Retired Old Men Eating Out -- and visited the nearby Kroger store every Wednesday because seniors were given a discount on purchases.

Dorothy Abbott, 78, devoted her life to a disabled adult son who lived at home; the son was away at a summer camp when the attacks took place.

Police ask that anyone with information on the case contact Sgt. Gary Cortellino at 678-382-6908 or gary.cortellino@dunwoodyga.gov.

You may also leave anonymous tips via SUBMIT A CRIME TIP; through Crimestoppers or  via the TIPSOFT program.