than a dozen children with special needs. the multiple motives police are pursuing in the brutal crime. hi, everybody. i m sally thorner. and i m kai jackson. a husband and wife who helped more than a dozen developmentably-disabled children, are found murdered. three men are in custody tonight. but no one seems to know a motive. reporter: tips led to three men wanted in the murder of a florida couple. burt and debbie billings, known for helping children with disabilities, were shot in their home thursday. an arrest warrant showed that they went there to rob them. both face murder charges and will be in court tomorrow. gonzalez father, leonard gonzalez senior, will appear in court today, on charges of evidence tampering. police say the 56-year-old tried to paint over the red van spotted on surveillance video, leaving the billings home. police are looking into multiple motives. we have a sort of tie with this family through a business relationship. but to state