Mother set to plead guilty in teen's murder, dismemberment

FILE - This photo provided by the Bucks County District Attorney on Jan. 8, 2017 shows Sara Packer. On Friday, March 29, 2019, she is set to plead gui...
This undated photo provided by the Bucks County District Attorney’s Office on Friday, March 29, 2019 shows Jacob Sullivan. On Thursday, March 28, 2019...

FILE - This photo provided by the Bucks County District Attorney on Jan. 8, 2017 shows Sara Packer. On Friday, March 29, 2019, she is set to plead gui...

This undated photo provided by the Bucks County District Attorney’s Office on Friday, March 29, 2019 shows Jacob Sullivan. On Thursday, March 28, 2019...

DOYLESTOWN, Pa. (AP) — A woman is set to plead guilty in the 2016 rape, murder and dismemberment of her 14-year-old daughter.

Former adoptions supervisor Sara Packer agreed to plead guilty in exchange for a life sentence. She's appearing in a suburban Philadelphia courtroom Friday afternoon.

Packer admitted in court last week that she plotted to kill her adoptive daughter, Grace Packer, saying she hated the teenager and "wanted her to go away."

Sara Packer's boyfriend, Jacob Sullivan, pleaded guilty to first-degree murder and related offenses and was sentenced to death.

Packer says she helped Sullivan tie Grace up and watched as he raped and strangled her. The couple stored Grace's body in cat litter for several months before dismembering it and dumping it in a wooded area.