An extremist who carried out a deadly attack on a church with a group of militants loyal to the Islamic State (IS) group was jailed for life on Monday.
Juhanda was found guilty of an act of terrorism that killed a toddler and hurt three other small children In Samarinda, East Kalimantan last November.
"The defendant has been proven guilty of committing a terrorism act," Judge Surung Simanjuntak, from the East Jakarta District Court, said.
Prosecutors said Juhanda travelled to the Oikumene Protestant church in Samarinda by motorbike, intending to carry out the attack.
But instead he fell from the bike and detonated a Molotov cocktail in front of the church where the youngsters, aged between two and four, had been playing.
Two-year-old Intan Olivia Marbun was killed in the blast.
Juhanda was arrested along with four others, with all five accused of belonging to the Jamaah Ansharut Daulah group (JAD), a local militant outfit that supports IS.
One of his co-conspirators, Joko Sugito, was jailed on Monday for seven years for his part in the attack.
The three other defendants involved in the case have received sentences ranging from six years to six years and eight months in prison.
Police said Juhanda learned the bomb-making technique in Aceh from the group of Southeast Asia’s most wanted terrorist Dulmatin, who was killed in 2010.