Oishee Rahman's fugitive friend, who allegedly instigated her to kill her parents Special Branch of police inspector Mahfuzur Rahman and Swapna Begum, was arrested in the capital's Badda area on Wednesday night.
The Detective Branch of police arrested Asaduzzaman alias Jony, who had been on the run for a month, at a house in DIT project area at Merul Badda, said Monirul Islam, joint commissioner of Dhaka Metropolitan Police.
A Dhaka Court yesterday placed Jony on five days' remand for the police to interrogate him.
The branch disclosed the arrest at a press briefing at the DMP media centre, where Monirul said Jony had assured Oishee of safe passage to India. That is why she had left the house with valuables after the killings on August 15.
Law enforcers recovered the bodies of the couple from their Chamelibagh house in the capital the following day.
Jony sheltered Oishee at his acquaintance's house at Uttar Mugda, Monirul noted.
Detectives said Oishee, who gave a confessional statement before a court on August 24, had mentioned to them the name of Jony as an instigator.
Oishee surrendered herself to Paltan police a day after the bodies were recovered.
Hours later, law enforcers arrested Khadiza Khatun Sumi, a domestic help who allegedly helped Oishee hide the bodies, and Mizanur Rahman Rony, another friend of Oishee's, who also sheltered her after the incident.
With the arrest of Jony, law enforcers had completed the arrests of all the accused in the killings, Monirul told reporters.
Replying to a query, Monirul said, “We have no specific information that anyone except Oishee had directly taken part in the murder.”