A SWAT standoff is underway in southwest Houston after a man, police say, barricaded himself inside a home (KTRK Photo/ KTRK)A SWAT standoff is underway in southwest Houston after a man, police say, barricaded himself inside a home (KTRK Photo/ KTRK)A SWAT standoff is underway in southwest Houston after a man, police say, barricaded himself inside a home (KTRK Photo/ KTRK)A SWAT standoff is underway in southwest Houston after a man, police say, barricaded himself inside a home (KTRK Photo/ KTRK)HOUSTON (KTRK) -- A SWAT standoff is underway in southwest Houston after a man, police say, barricaded himself inside a home