PHILADELPHIA -- A spokesman for the family of retired FBI agent James McIntosh said Friday that police have confirmed to them that fully decomposed bones found in a trash heap in west Philadelphia are those of their missing daughter, Deanna Wright-McIntosh.

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Slideshow: Human Bones Discovered

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FeedRoom

Bones Found In Industrial Drum

Authorities said that McIntosh had been missing since she ran away from home on Dec. 3.

On Thursday afternoon, on a tip from Yeadon police, Philadelphia police discovered the bones in a 55-gallon industrial drum behind an abandoned building on 63rd and Arch streets.

The pastor for the family, the Rev. Larry Patrick, told the media Friday that the worst nightmare for the family has now been realized.

"The family is in the process of moving from being wounded to now healing," Patrick said.

Sources close to the investigation told NBC 10 News that Wright-McIntosh was raped, murdered and dismembered at location on Linden Avenue in Lansdowne, Pa.

Thursday night investigators searched the alleged crime scene looking for more evidence. Police sources said that after recovering Wright-McIntosh's remains, they discovered a ring bearing the initial D.

Investigators told NBC 10 News that the man who led them to the lot where the girl's remains were found might have witnessed the crime, but he only admitted to buying the gasoline that was used to burn the body.

Police sources said that the man who allegedly killed Wright-McIntosh is already in jail on unrelated crimes.