| He believed the fire had been developing for at least 15 minutes before the fire brigade arrived as no accelerants such as petrol appeared to have been used. |
| Next door, a strip mall popped and hissed as unknown accelerants aided in its fiery destruction. |
| Detroit Fire Commissioner Charles Wilson said his investigation, conducted with search dogs, found no accelerants that would link the fire to arson. |
| It found two spots where accelerants could have been used and police took away samples for analysis. |
| During the siege he set off a fire extinguisher and told the police he had accelerants. |
| For years, arson investigators looked for telltale signs of chipped concrete based on the assumption that fire accelerants like gasoline cause such fragmentation. |
