His sister Azaria posted on Facebook that she would miss Ali "forever".
Others who knew Ali described him as "a wonderful young man" and an "amazing" person.
"Such a beautiful soul! Will miss his 'Colgate smile'," said one woman.
Police were initially called to the scene after reports of a serious assault and a hammer-wielding man seen "saturated" in blood.
A body was located in a central Christchurch address on Sunday night. Police have cordoned off the intersection of Armagh Street and Barbadoes Street. Photo / George Heard
Ali's body was found soon after and a homicide investigation is now underway.