A church official called George Karidhimba Muriki was gunned down by unidentified assailants on a motorbike, just inside the church entrance gate, during January.
The attack, in the Majengo neighbourhood of Mombasa city, was the latest in a string of anti-Christian activities that had happened in the nominally Christian country.
According to reports from Barnabas Fund, nobody has yet claimed responsibility for the attack, but many suspect Somali Islamists, Al-Shabaab, to be behind the incident.
Although Kenya is a Christian-majority country, the city of Mombasa which is on the coastline is Muslim-majority.