Emmanuel Owusu-Ansah, 30, was ordered held in custody. He is charged with first-degree murder.
Takyi's body was found Saturday morning on Richgrove Drive, near Eglinton and Martin Grove Road.
The mother of two had been stabbed and then set on fire.
Det. Brian Borg called her death "extremely violent."
Owusu-Ansha was taken into custody a short time later.
Members of Takyi's family are asking how Owusu-Ansah was able to get near the 27-year-old victim.
"I think the government knows why they let him out," said Opoku Agyemang, Takhi's uncle.
Police admit, Owusu-Ansah was charged with assaulting Takyi with a weapon and threatening to kill her more than a month ago. He was released in December with several conditions including house arrest.
The head of Toronto's Women's Centre for Social Justice, Nneka MacGregor, says the system has to change.
"The numbers of women who are murdered is increasing," she said. "The number of women seriously and egregiously harmed is increasing."
Takyi's family will be holding a candlelight vigil on Saturday and are asking for donations to help with funeral expenses and the cost of raising her two children.