The masked artist, 26, had parked his car in a garage in Gothenburg last night when some assailants fired a hail of bullets – fatally injuring him.
He was rushed to the hospital where he died shortly afterwards.
Cops received an alarm call about a shooting near Selma Lagerlöf’s square in Hisingen Tuesday evening.
Police officer Thomas Fuxborg said: “[The rapper] lived here in the area and when he came to park his car, [the shooters] waiting for him attacked him.”
Authorities reportedly found seven bullet marks on a glass door of the parking garage.
A yellow rose has been placed in front of the door for tributes.
The Swedish police department has now opened an investigation and trying to get more information from the local people living there.
Jens Andersson, a spokesperson for the Swedish police department, said: “[A]witness saw a car that is seen in connection with what happened. We are investigating whether it is true.”
Another spokesperson Annika Laag added: “We are working to collect witness information from as many [locals] as we can and continue to work on the technical investigation.”
After the shooting, a police task force raided an address in Gothenburg, it is understood.
Cops say several people have been brought in for questioning, but there are currently no suspects.
C. Gambino was said to be one of Sweden’s greatest and most successful artists.
His hit albums, including Sin City and In Memory of Some Stand Up Guys topped the Swedish music charts.
He won the prestigious Swedish music award Grammis In May for Hip-Hop artist of the Year.