WHITTIER, Calif. – A detective from the Los Angeles Police Department assigned to the NBA star Derrick Rose’s case died Tuesday. Authorities said the cause of death appears to be a self-inflicted gunshot wound.

Whittier police received a call of a possible suicide in the 8400 block of Via Sierra. Officers responded and found Det. Nadine Hernandez, 44, suffering from a single gunshot wound to the chest. She was transported to PIH Health Hospital where she later died, according to the Whittier Police Department.

Police said a firearm was recovered at the scene, but it was unclear if it was her service weapon. “At this time, there are no signs of foul play, and this incident is being investigated as a suicide. …” according to Whittier PD.

Police said a relative was in the home at the time of the shooting and called 911, but there’s no evidence the person had any involvement in Hernandez’s death.

LAPD said there is no indication that her investigation of the case had anything to do with the apparent suicide, and the investigation on the Rose case will continue unimpeded.

Police sources said the house where Hernandez was found belonged to a relative. County property records show ownership to a retired LAPD lieutenant.

Los Angeles Times reported that LAPD sources confirmed Hernandez was a detective in the department’s Robbery-Homicide Division Special Assault Section and was frequently involved in high-profile sex crime cases. She worked for the LAPD for nearly two decades.

“We are heartbroken about the tragic death of Detective Nadine Hernandez, a 19-year veteran of the department,” the LAPD said. “It is a loss that touches us all in the LAPD family.”

Hernandez previously wrote a letter that was widely reported in national media, in relation to the anonymity of the plaintiff in Rose’s case. In it, Hernandez wrote that concealing her identity is “an invaluable investigative aid to investigators.”

FoxNews reported that on Wednesday, a judge refused to declare a mistrial or dismiss the rape lawsuit against Rose and two of his friends. The victim claims that these three men sexually assaulted her while she was incapacitated from drinking and, possibly, drugs. However, Rose said he was right to assume she gave consent.

MyNewsLA.com reported that the trial of this civil lawsuit against Rose and two of his friends is proceeding in federal court in downtown Los Angeles.

The Whittier Police Department is asking anyone with information regarding the death of Det. Hernandez call the department at (562) 567-9270.