JAKARTA (AFP) — A man already on Indonesia’s most wanted list in connection with a suicide attack five months ago was the bomber who blew himself up in a packed church on Sunday, according to police.

Ahmad Yosepa Hayat, 31 was sitting among the Bethel Injil Church congregation in central Java’s Solo city during a service when he stood up and detonated a bomb strapped to his body, wounding 27 people.

“Fingerprint and DNA tests showed that the bomber is Hayat,” national police spokesman Anton Bachrul Alam told a press conference. “He is a member of Jemaah Ansharut Tauhid (JAT) in Cirebon.”

JAT was founded by militant spiritual leader Abu Bakar Bashir, who was jailed in June for 15 years for funding a terrorist group planning attacks against Westerners and political leaders.

Hayat, born in Cirebon in western Java, accompanied a suicide bomber to an attack on a police mosque in that city in April which injured 30 people, Alam added.

“He wanted to die as a martyr,” he said, adding that Hayat, who had bomb-making expertise, joined the militant group in 2010.