Samara Spann was arrested in Sacramento for beheading her 6-year-old daughter Kyeimah. Convinced that her daughter was a demon, Spann was part of a Sacramento cult that worshipped dead rapper Tupac Shakur. Spann's father was quoted saying she deserves no mercy. Spann's other two children, a 14-year-old girl and 11-month-old boy, were taken into protective custody.

KCRA

Investigators in Seattle, Wash., say they recently learned Samara Spann drowned her daughter, Kyeimah (pictured, below), in a Washington state apartment before fleeing and turning up at a south Sacramento home.

Gary Spann, Samara Spann's father, told KCRA 3 Tuesday that his daughter deserves no mercy because what she is accused of is so bizarre.

"For my daughter, life in prison without the possibility of parole would be the best thing for her because she can just rot in there," Gary Spann said.

A King County, Wash., Sheriff's Department representative said the homicide may have happened around New Year's Eve or early the next day.

But it's a Sacramento connection that makes the case take a strange twist. In court documents filed by Washington state prosecutors, investigators and family members allege Samara Spann was part of a Sacramento cult that worshipped deceased rap music artist Tupac Shakur.

A family friend who did not want to be identified said: "She has Tupac posters, Tupac everything. Like why does she like him so much? ... It was like an obsession."

In the same court documents, Samara Spann reportedly told a Sacramento friend that she thought her daughter was a demon: "This friend told her that if the child in fact was a demon, that the mother needed to cut its head off."

In Washington, investigators recovered a blood stained carpet. In Sacramento, when confronted with that evidence, the same investigators say the mother confessed to cutting her own child's head off and then dumping it off a bridge.