( CNN ) -- A 61-year-old pastor who was killed in a rural Oklahoma church was found lying behind the altar with her arms outstretched , a source close to the investigation told CNN . Carol Daniels , a 61-year-old pastor , was found nude behind the altar of a church in Anadarko , Oklahoma . It was one of the latest details to emerge in the killing of Carol Daniels , whose nude body was found in the Christ Holy Sanctified Church in Anadarko , Oklahoma , in a crime scene the district attorney described as `` horrific . '' Her clothes were taken from the scene , and a dissolving agent had been sprayed around her body , the source said . An FBI profiler was brought in during the weekend to assist investigators , Steve Neuman , a spokesman for the Oklahoma State Bureau of Investigation , said Monday . Authorities also have increased to $ 15,000 a reward for information . Daniels , from Oklahoma City , Oklahoma , was found inside the church August 23 . She died from `` multiple sharp-force injuries , '' according to a preliminary autopsy report obtained by CNN . Sharp-force injuries mean cuts or stab wounds . Diagrams in the autopsy notes show Daniels suffered injuries to the side and back of her neck , her back and her left breast . She also suffered wounds to her hands , a typical spot for defensive wounds resulting from attempts to ward off an attack . In addition , the autopsy notes say a portion of Daniels ' hair appeared singed or burned . The medical examiner classified her death as a homicide . Daniels ' son , Alvin Daniels , told CNN that she traveled many Sundays to Anadarko , about 50 miles southwest of her home , to the church `` in case people came to worship . '' Watch what the son has to say to Nancy Grace » . District Attorney Bret Burns has called the crime scene the worst he 'd seen in 17 years as a prosecutor but gave no further explanation . Jessica Brown , a spokeswoman for Oklahoma 's State Bureau of Investigation , said last week the body was `` staged '' after the killing , but declined to elaborate . Meanwhile , Neuman said , video surveillance from a convenience store near the church is being analyzed , a process that started Friday . He declined to comment on the condition of Daniels ' body when found . Alvin Daniels told HLN 's `` Nancy Grace '' that his mother was `` always joking with us and always taking care of us , even giving her last dollar , even if she did n't have it . '' He said she took precautions at the church . `` She was very cautious for the most part , and she would usually leave the door open in case people came to worship , '' he said . The death has unnerved religious leaders in Anadarko , said Ted Mercer , pastor of Grace Christian Fellowship , which is about three blocks from the church where Daniels ' body was found . CNN 's Tracy Sabo contributed to this report .
Pastor Carol Daniels ' clothes were removed from the crime scene , source says . Source : Dissolving agent had been sprayed around her body . FBI profiler brought in during the weekend to help with investigation . Authorities have increased to $ 15,000 a reward for information .