A Longwood mother who allegedly killed her three children on Mother's Day and then packed them between mattresses was apparently in North Carolina to kill her woman lover and the woman's husband, Local 6 News reported Thursday night.

Ashley Bishop, who lives in North Carolina, said she had an intimate relationship with Andrea Williams, 32, (pictured, left) last year that lasted for about four months.
Local 6 News reported that Andrea Williams' three children knew Bishop well. Williams' oldest daughter, Ilona, 9, reportedly wrote a letter to Bishop about how much she missed her, according to the report.
Bishop said she broke off the relationship but Williams would not let it go and was obsessed with her, Local 6 News reported.
"She had it in her mind that there was nobody else in the world she could be with but me, and she had made it really clear to me that it was me or nobody," Bishop said.
Investigators believe that after Williams killed her three children, she drove and hitchhiked to Bishop's home in North Carolina.

Monday, Bishop's husband called 911 when Williams showed up at their North Carolina home and began pounding at the door.
Deputies arrested Williams for trespassing and later she eventually admitted to killing her three children in Central Florida.
Thursday, deputies in North Carolina said Williams was likely planning to kill both Bishop and her husband and then take her own life. Officers who arrested Williams for trespassing searched the woman's bag and found duct tape, handcuffs and ammunition, according to the report.
Williams remains in a North Carolina jail on trespassing charges and is fighting extradition.
Autopsies were completed this week and investigators were able to rule out any type of violent cause of death for Williams' three children. Now, investigators believe the children were apparently drugged. A toxicology report will be finished in a week to 10 days.
Funeral services for the children are set for Tuesday at 11 a.m. at the First Baptist Church of Longwood.
Local 6 News also reported Thursday night that child protection workers from the sheriff's office met with Williams several times last year and that the sheriff's office has opened its own investigation into the matter.
Longwood is about 15 miles north of Orlando.
Watch Local 6 News for more on this story.
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