There were no signs of forced entry anywhere around the home, Gomes said.
Detectives took six weeks to sort through evidence and have collected 150 items for forensic analysis and 127 witness statements, CNN reported.
Police said an autopsy showed the Shermans died from “ligature neck compressions.”
Gomes said police considered three possibilities: that the Shermans’ deaths were a double suicide, a murder-suicide or a double homicide. She said the evidence pointed to a double homicide.
Honey Sherman was a member of the board of the Baycrest Foundation and the York University Foundation. She also served on the boards of Mount Sinai's Women's Auxiliary, the Simon Wiesenthal Center and the International American Joint Distribution Committee.