A former teacher of Eden Mohila College was found dead with his body tied up by adhesive tape at his office in Banani DOHS yesterday morning.
Prof Ali Hossain Malik, 65, was the general manager of Syed Group and hailed from Chuadanga.
Morgue sources say his body bears the marks of six knife stabs.
His hands, legs and mouth were tied up with adhesive tape and blood was splattered all over the floor at a house on Road No 2, according to Sheikh Mohammad Shamsul Huq, security and executive officer of Banani DOHS Parishad.
He was killed around 9:00am in the building of Syed Group that was under construction. He had been living on the fourth floor of the seven-storey building to oversee the construction, added the officer.
The owner of the building does not live in the country as he left for Australia three or four months earlier, he confirmed.
The victim's bother Abdul Momin Malik said, “As far as we know my brother does not have enmity with anyone. The room was vandalised and vaults were found unlocked and robbed where he was murdered.”
Ali retired from Eden College eight years ago where he used to teach botany. He joined Syed Group as the general manager three years ago, said Momin.
The security officer of DOHS said two staff of Syed Group -- Selim and Saifullah -- used to live beside his room in the same apartment.
Officer-in-Charge of Bhasantek police Nazrul Islam said Selim was arrested, but Saifullah was on the run.
The latter's phone was found switched off since the incident came to light, he added
A knife was recovered from the scene, the OC said, adding, the body was sent to Dhaka Medical College morgue for autopsy.
Earlier on Wednesday, a retired brigadier general was murdered in the same area of the DOHS.