A $110,000 reward is now being offered by multiple parties in the unsolved 2018 Iconic Village Apartment fire that killed five residents in San Marcos.

As officials continue their search for those responsible, they hope the $100,000 increase spurs movement in the case and leads to a break in the investigation.

“We hope this will be enough to help move the investigation forward,” said Mike Widdell, assistant agent in charge of the Houston bureau of the Alcohol, Tobacco, Firearms (ATF)...