Police in Hallandale Beach, Florida say a Toronto couple found murdered in their winter home  were asphyxiated. The Police chief says they are looking for more than one suspect in the murders of 66-year-old Rochelle Wise and 71-year-old David Pichosky.   He would not say if the asphyxiation was done by hand or with a ligature.   Investigators call the deaths shockingly senseless.