Dozens of football referees and officials in several countries were also banned, including Nigerian national team coach Salisu Yusuf, for receiving cash from undercover journalists posing as agents.
Husein was shot in the neck and the chest by unknown gunmen on his way home Wednesday night in the capital Accra, police said.
Confirming the incident, Anas tweeted, “Sad news, but we shall not be silenced. Rest in peace, Ahmed.”
Husein had previously made a complaint to police after a Ghanaian lawmaker, Kennedy Agyapong, showed his photograph on a private television channel.
He promised payment for supporters who took retribution against Husein.
“That boy that’s very dangerous, he lives here in Madina. If he comes here, beat him,” he said, pointing to Husein’s image.
In the undercover investigation into football corruption, Agyapong’s name was mentioned by implicated sporting officials.
Husein’s lawyer, Kissi Agyabeng, said the member of parliament had questions to answer.
“He invited the world to beat him up and said he will pay for it and now he has been killed,” he said.
“How can you put pictures of someone out there and splash it on national TV and ask people to go after his life for a reward? In law this is abetment of crime.”
The reporter, whose other exposes have lifted the lid on graft in the judicial system, is distinctive for wearing hats and face-coverings to conceal his identity.