It's been three weeks since Takeoff was shot to death in Houston during an after-hours party hosted by J. Prince Jr.

Despite his murder being witnessed by dozens, the police have yet to announce a suspect.

But Houston Police Chief Troy Finner wants everyone to know it's not from a lack of effort.

“You remember on that day, I met with Takeoff’s mother. I talked with that lady personally, made a promise and there’s a lot being said. We want all investigations on murders when people are being killed to move. But the main thing is we get it right," Finner said. "I do not want to send family members on a roller coaster ride and then we have to come back and say, ‘Whoa, that wasn’t the person.’ I want everyone to be patient and just understand there will be some justice here in Houston, Texas."

Finner also pushed back on the Internet rumors that Takeoff's killer had already been killed in an act of retaliation, labeling them false.