Investigators are looking into a number of issues including the possibility that the fire was caused by smoking near an oxygen tank.

The scene outside Gabriel House, the assisted living facility that saw a deadly fire over the weekend, was solemn Wednesday, as mourners placed flowers and lit candles, some praying, others standing silently, some imagining the scene over the weekend that left nine residents dead.

The city is taking a significant step closer to meeting the national standard for firefighters working at a given time.