Ahmed Hussein-Suale was shot three times in the chest and neck as he drove home on Wednesday night.
Hussein-Suale was part of the Tiger Eye team whose probe led to a lifetime ban for Kwesi Nyantaki, FIFA Council member and former head of the Ghana Football Association. Nyantaki was filmed accepting a bribe of $65,000.
An additional 53 referees and officials were banned or suspended as a result of the team’s work.
However, following a BBC documentary about the scandal last year, Ghanaian MP Kennedy Agyapong encouraged people to attack Hussein-Suale and his team, branding Tiger Eye’s leader Anas Aremeyaw Anas a "blackmailer" and an "extortionist."
Anas confirmed the death on Twitter.
“Sad news, but we shall not be silenced. Rest in peace, Ahmed.”