Federal agents are turning to informants for information about Young Dolph’s shooting death, TMZ reports. However, the efforts haven’t led to any arrests or suspects so far.

TMZ writes that the Memphis Police Department has also received several tips about Dolph’s death and reached out to their own informants, but neither have resulted in any promising leads.

Dolph was memorialized in his hometown of Memphis, Tennessee on Thursday (Dec. 16), almost one month after he was shot and killed outside local cookie shop Makeda’s Cookies. The 36-year-old’s longtime partner Mia Jerdine, their two young children and other loved ones gathered at the FedExForum to celebrate his life and legacy.

“My dad was the person who raised me and he trained me to be a good man when I grow up,” Dolph’s 7-year-old son Adolph Thornton III said. “First, when I was younger, I used to love playing… But now that he is dead, I’m going to make it up to the whole world and be the greatest person you will ever know.”

“My dad, I love him cause I know who he is and he’s the best dad… I know ’cause I just like to play with him in my heart ’cause he’s still in my heart and I’ll keep thinking of him forever and ever and ever,” his 4-year-old daughter Aria added.

Earlier this week, Dolph was also honored with a street renaming ceremony in Memphis’ Castalia Heights neighborhood. As reported by REVOLT, the intersection between Dunn and Airways is now called Adolf “Young Dolph” Thornton Jr. Avenue after the rap star.

Police previously released a surveillance image of the two masked men accused of fatally shooting Dolph. The assailants fled the scene at Makeda’s Cookies in a white Mercedes Benz, which police later found abandoned at a nearby house.