After several hours of research by a team in the East Java Police Labfor Ponari ruins, the material cause of the explosion of firecrackers began to show a bright spot. Presumably, the explosion was due to the master, mix the ingredients Ponari one firecracker.

It was submitted by Police Chief Adjunct Senior Commissioner Rinto Djatmono Malang when contacted via telephone on Wednesday (8/15/2012) afternoon. "The interim findings, after we come down to location, there is the alleged victim was killed as a result of mixing the powder of firecrackers, causing a loud explosion," he said.

The mix of materials Ponari fireworks at home is Ponari own. While two other deaths that Listiana (35), wife of Ponari and Sodikin (17), employees are only subject to impact.

"As clever mix is Ponari own pack. Problem mecarik him king. Maybe apes, the powder taxable cigarette or other ignition finally exploded," said Aha, Ponaro neighbors met in front of the ruins of the house Ponari.

Rinto Djatmono Malang police chief Adjunct Senior Commissioner urged people not to make firecrackers because it is very dangerous. "Hopefully people do not come back. It's a concern. Due to firecracker material mix is very dangerous, so forbidden," he said.

Meanwhile, Chairman of RT 19 RW 05 Ngingit village, Muhammad Nuri said, after a team from the East Java Police Labfor, PMI and SAR return, local people will continue to look for pieces of the third victim's body. Residents worry there are still pieces of the third victim's body is left behind.

Neighbors and the people here will continue to look for it. Who knew three pieces of the victim's body was still there and can be found. Sorry for that piece of his three victims did not find, "said Nuri.