PHOENIX -- Neighbors say police told them at least two suspects have been arrested in connection with a double murder in Paradise Valley.
Unnamed sources told 3TV reporter Mike Watkiss that Lawrence and Glenna Shapiro had been shot and that stolen evidence from the scene helped investigators trace the suspects to the murders.
Sources also confirmed that police are looking into a possible connection to a similar deadly fire at a townhome at 16th Street and Maryland Avenue last week.
The Paradise Valley Police Department has not confirmed any of that information with 3TV. Police officials said they will not be releasing any further information at this time.
The Shapiros were found tied up and burned in their home near Camelback Road and 40th Street on Monday.
Paradise Valley police officers went to the couple's home after Phoenix police found their car on fire behind a strip mall near Seventh Street and Union Hills Drive.
The home was on fire when officers arrived. The bodies were found in the master bedroom after firefighters put out the flames.
Investigators said the fire was set in two bedrooms on opposite sides of the home.
Stay with 3TV and azfamily.com for more details on this continuing story.