Bali blast suspect demonstrates how bomb assembled<\/p>\n
Wahyoe Boediwardhana, The Jakarta Post, Denpasar, Bali<\/p>\n
A key suspect in the October attack in Bali demonstrated to
\npolice how the bombs were made from a mixture of chemicals and
\nexplosive materials, and how the bombers planned the attack that
\nleft at least 190 people dead.<\/p>\n
In a reconstruction of the crime on Tuesday, suspect Ali Imron
\nshowed how the bombs were assembled and provided details of the
\nattack.<\/p>\n
According to the suspect, the attack did not go entirely as
\nplanned and the final moments before the blasts remain unclear.
\nOne of the two suspects who detonated the bombs is believed to
\nhave died in the explosions and the other is still at large.<\/p>\n
Three bombs were used for the attack: one near the American
\nconsulate in Denpasar and the other two at crowded nightclubs
\nalong a tourist strip in Kuta.<\/p>\n
The first bomb exploded in Paddy's Cafe on Jl. Legian in Kuta.
\nAli said that bomb consisted of six 25-centimeter-long plastic
\ntubes, each filled with four kilograms of TNT.<\/p>\n
The tubes were stuffed into a vest, which must have weighed
\nabout 24 kilograms when the bomber walked into the cafe and
\nkilled eight people, including himself. It remains unclear
\nwhether this was a suicide attack, which is the belief of the
\npolice, or whether the bomb simply went off prematurely.<\/p>\n
The biggest blast was the explosion outside the Sari Club,
\nlocated across from Paddy's. Here at least 182 people died, many
\nof them foreign tourists.<\/p>\n
Between Sept. 25 and Oct. 2, suspects Ali, Abdul Goni, Umar
\nPatek and Syawad are believed to have assembled the Sari Club
\nbomb inside a rented house in Denpasar.<\/p>\n
The bomb's main ingredients were 900 kilograms of potassium
\nchlorate, a type of fertilizer that is often used in fish bombs;
\n75 kilograms of aluminum powder; and 150 kilograms of sulfur.<\/p>\n
The chemicals were mixed into a black powder and then placed
\ninside 48 plastic cabinets. Each cabinet was connected with a
\n150-meter-long detonator cord. Every 10 centimeters of the cord
\ncontained one gram of the explosive pentaerythritol trinitrat
\n(PETN). In addition to the cord, the bombers also used 94
\ndetonators containing 279 grams of the explosive material RDX.<\/p>\n
As a booster, they used 25 kilograms of TNT, which was put
\ninside a separate plastic cabinet.<\/p>\n
A remote detonator was assembled with three options to
\ndetonate the bomb: either through a cellular phone, a timer set
\nfor 45 minutes or with a switch to detonate the bomb immediately.
\nTampering with the remote detonator would also have triggered the
\nbomb.<\/p>\n
Malaysian suspect Asahari, who remains at large, is believed
\nto have assembled the detonators. The Sari Club bomb was then
\nloaded into a Mitsubishi L-300 van.<\/p>\n
The bomb near the U.S. consulate exploded seconds after the
\nSari Club bomb, causing no casualties. Ali said this bomb was
\nassembled by filling a plastic box, which measured 25 centimeters
\nin height and 15 centimeters in width, with TNT.<\/p>\n
He said the bomb was detonated as planned via a cellular phone
\ncall. However, he could not say who and what detonated the bomb
\noutside the Sari Club.<\/p>\n
Ali was inside the L-300 along with two other suspects who he
\nidentified as Jimmy and Iqbal, as the three moved the bomb into
\nposition outside the Sari Club.<\/p>\n
Ali got out of the van before it arrived at the club, and he
\nreturned to the rented house with suspect Idris, who was
\nfollowing the van on a motorbike.<\/p>\n
Jimmy was supposed to detonate the Sari Club bomb via a
\ncellular phone, but Ali realized too late that he took the
\ncellular phone with him when he got out of the van.<\/p>\n
Ali said the bomb exploded before the 45 minutes on the timer
\nhad elapsed, which meant the bomb had been detonated by someone
\nwho pressed the switch or by someone who tried to open the remote
\ndetonator.<\/p>\n
Witnesses said the Mitsubishi van was parked outside the Sari
\nClub. The 1.25 tons of black powder, 25 kilograms of TNT, 1.5
\nkilograms of PETN and 279 grams of RDX literally blew the van to
\npieces. It also left a five-meter wide and 70-centimeter deep
\ncrater beneath the van.<\/p>",
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