HOUSTON --An abandoned duplex on Houston's south side was set on fire for a third time in two weeks. The home is located in the 6000 block of Sidney. The latest attempt to burn it down came at around 2am Friday morning. No one was hurt. Firefighters say they could smell the fuel used to start the fire. And they say two previous fires at the home are suspicious, but it's unclear whether all three cases are related. The arson unit will investigate.