Authorities have launched a homicide investigation into the house explosion that killed a couple and left numerous homes uninhabitable in an Indianapolis neighborhood, reports the Associated Press.
Officials have said they believe natural gas was involved in the explosion, which destroyed five homes and left dozens damaged, some heavily. Investigators have been focusing on appliances as they search for a cause of the explosion, which caused an estimated $4.4 million in damage.
Search warrants have been executed and official are looking for a white van that was seen in the subdivision the day of the blast, Marion County Prosecutor Terry Curry said. Authorities are offering at least a $10,000 reward.
"We thought something like this was not just an accident," said Doug Aldridge, who heads the neighborhood Crime Watch.
Aldridge said he and other residents frequently saw a white van parked outside the home, though he didn't know who owned it. He said residents were angry and upset, but he expects most of them to stay in the neighborhood.
"It's surprising that it finally came to that. Everyone had their suspicions," Chris Sutton, who lives a street away from the blast site, said. "It's kind of scary that someone might set off a gas explosion," he added. "It's really scary."
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