Investigations into what starts a fire require a methodical look at the scene and can take a long time to complete.

FALL RIVER — The nine residents killed in a fire here at Gabriel House, an assisted living residence, are being remembered as fonts of knowledge and symbols of longevity.

The Fall River mayor’s office has confirmed all Gabriel House residents displaced by the tragic Sunday fire that claimed nine lives now have new living arrangements.

A state official documented 26 instances where staff members did not report specific emergency situations to the state within the 24-hour window required by law.

Despite efforts by scores of firefighters – nearly half of whom were off duty at the time – and “every police officer in the city,” nine Gabriel House residents died in the fire, according to officials. Those killed range in age from 61 to 86. Dozens of others were injured, one critically.