More details of the killing of Denis Ntare Semadwinga are coming to light, although much is still unclear. Apparently 8-10 people (some say in uniform, other say in civilian clothes) came to his house in Gisenyi at around 8-9pm on June 20th. They blocked off the area and stabbed him to death.
Semadwinga was linked to a dissident faction of the CNDP that had written a letter denouncing the party's leadership back in May. The signatory of that statement, Patrice Habarurema, was arrested by Rwandan police shortly afterwards. Several other CNDP officials have been arrested by Rwandan authorities over the past few months, including Sheikh Idi Abbas, accused of being linked the grenade attacks in Kigali.