On 21 October, the police arrested Dwi Sumaji, an advertising company driver, for the murder; they alleged that Sumaji had killed Udin for having an affair with his wife, Sunarti. After Sumaji confessed to the crime, police announced that an iron bar and a T-shirt, both stained with Udin's blood, had been found in Sumaji's home. Though Sumaji's police-appointed lawyer agreed that Sumaji had confessed to the crime, within a week Sumaji obtained independent counsel through whom he attempted to withdraw the confession. Marsiyem, who had seen her husband's attackers, insisted that Sumaji was innocent. On 23 October,
Bernas published a sketch of Udin's attacker, drawn soon after the murder based on Marsiyem's description, with a picture of Sumaji; under Sumaji's photograph, they wrote "Ditolak" ("rejected"), drawing attention to the dissimilarities between the two. Sumaji withdrew his confession, then alleged that police had encouraged him to confess after plying him with alcohol and bribing him with money, a prostitute, and a better job if he confessed to the crime. Sunarti, incredulous that her husband could be a murderer, wrote letters to several high-ranking officials and bodies, including President
Suharto. Only one, to the
National Commission on Human Rights (Komnas HAM), received a reply: on 28 October, the commission announced that it would investigate irregularities in Sumaji's arrest and internment. Meanwhile, Sumaji's counsel and the White Kijang team located several witnesses to corroborate Sumaji's account, including the prostitute. The police continued the investigation, under pressure to finish quickly. Two reconstructions of the murder were conducted, drawing hundreds of spectators. One was done with Sumaji playing the role of the murderer, without his lawyers' knowledge; when the counsel found out, they removed him from the reconstruction. Eventually, police agreed to a deal with the counsel, in which Sumaji's pre-trial release was guaranteed in exchange for a promise from his lawyers to not sue for wrongful arrest. Sumaji was released on 17 December, awaiting trial. In early 1997, Sumaji's case was refused by the prosecutor's office several times due to weak evidence. ==Mishandling charges==