People's Mujahedin of Iran
On July 5, 1994, a few days after 1994 Imam Reza shrine bomb explosion, and months after Hovsepian Mehr's murder two women who were allegedly from People's Mujahedin of Iran and were going to bomb Mausoleum of Ruhollah Khomeini and Fatima Masumeh Shrine were arrested. In a TV interview, one of them related Hovsepian Mehr's murder to People's Mujahedin of Iran.