A private investigator has claimed he found a 55-pound burn cage inside the former Hollywood Hills rental home of David Burke, better known as beleaguered singer D4vd. On Tuesday, December 16, California P.I. Steve Fischer took to X with a claim that he was hired by the rental property's owner and allegedly found the incinerator, adding it was unused and still in its original packaging. Fischer noted the incinerator burns "at 1,600 degrees," and said that crematoriums set their equipment to 1,400 degrees. Use of such an incinerator is also barred within the city of Los Angeles. Fans of the "Romantic Homicide" singer, 20, have reacted to the post, speculating the incinerator could have been purchased for use in a music video. "Why would a 55-pound burn cage be delivered to a private residence instead of directly to a prop designer or production house? Why would it be ordered before departing on an extended world tour?" Fischer asked in response. "It is also important to note that there were additional items present that could be used in conjunction with the burn cage." Us Weekly has previously reported that police on September 9 responded to the 1000 block of Mansfield Avenue in Hollywood the day after receiving reports of "a foul odor coming from a vehicle at a tow yard." Detectives responded to the scene and found human remains inside the seized vehicle, which is registered in Texas in D4vd's legal name. A photo shows the unopened burn cage. SF INVESTIGATES • STEVE FISCHER/X The recovered remains belong to Burke's alleged girlfriend, Celeste Rivas, according to police. Officials have not listed Rivas' cause of death, but authorities are treating her death as a homicide. Celeste Rivas' Body Found in D4vd's Car: Everything We Know So Far "To be very clear, this burn cage was not used," wrote Fischer on X. "It was still new and in the box. However, given that Celeste Rivas Hernandez's remains were ultimately found in the Tesla frunk, the presence of an incinerator at the same residence associated with that vehicle necessarily raises questions about intent." Fischer shared images of the burn cage with his X post. "The Burn Cage was not taken during the search warrant and because it was not used it appears it's not of importance to any possible criminal investigation," Fischer wrote. "But we think it's important context, even if not criminal. The burn cage and other related items were delivered to the residence under a false name, although the deliveries were accepted at the property." This photo was shared by Steve Fischer on X. SF INVESTIGATES • STEVE FISCHER/X D4vd has not responded to Us Weekly's repeated requests for comment, and his lawyer, Blair Berk, could not be reached by press time. No arrests have been made but prosecutors have now brought the case before an investigative grand jury. D4vd recently cancelled a string of scheduled tour dates in September and was a no-show for an event at the Grammy Museum on September 24. Rivas' mother told TMZ that her daughter had a boyfriend named David. Additionally, she revealed that Rivas had a tattoo that read, "Shhhh..." on her right index finger in red ink. D4vd has the exact same tattoo in black ink, also on his right index finger. He was first spotted with the ink, which is a design first popularized by Rihanna in 2008, in September 2024.