A musical artist who advertised buttock enhancement injections on YouTube under her performing name "Black Madam" is believed to be responsible for the death of one of her clients earlier this week in Philadelphia, police said in court filings.

Officers searched the apartment of Padge Victoria Windslowe, 41, after the several witnesses identified her as the woman who injected aspiring actress Claudia Seye Aderotimi, 20, with what she claimed was silicone in an airport hotel room earlier this week.

Aderotimi, who had traveled from London and allegedly paid Windslowe $1,800 for the procedure, died hours later at Mercy Fitzgerald Hospital in Darby, complaining of shortness of breath and chest pains.

Although investigators have not yet located Windslowe, several witnesses identified the same woman under different aliases, according to a search warrant affidavit for her apartment near the Lower Merion's Suburban Square shopping center.

Scheffee "Sasha" Wilson, a Saddle River, N.J., woman who put Aderotimi and three friends in touch with Windslowe, knew her from YouTube as "Black Madam."

Wilson told investigators Tuesday that she set up the Saturday appointment through e-mails and telephone calls, and was in the hotel room while the injections were administered, the affidavit states.

Theresa Gyamfi, 20, who traveled, with Aderotimi from England, knew her as Lillian Languri. She told investigators that she had witnessed Windslowe inject her friend and underwent a similar procedure herself.

But her landlord, who police found after tracking down the director of the "Black Madam" videos, knew her as P.V. Windslowe - the name that appeared on her checks.

Officers searched Windslowe's apartment Thursday looking for medical supplies, syringes, Krazy Glue or silicone that might link her to the crime, according to the affidavit. They also interviewed a man who identified himself as her boyfriend, investigators said.

In her Narberth neighborhood, Windslowe is known as Vicky.

A man who identified himself as Nick said she wasn't home. The apartment was decorated for Christmas with a fully decorated tree inside and fake snow around the front window.

Aderotimi checked into the Hampton Inn on Bartram Avenue and on Monday was taken to Mercy Fitzgerald Hospital at 1:30 a.m. She died later that day.

Delaware County Medical Examiner Fredric Hellman said earlier this week that Aderotimi's death may have been caused by the injection into her vascular system, but authorities have not yet determined whether the liquid was silicone or some other substance.

Windslowe's whereabouts remain unknown

Contact staff writer Jeremy Roebuck at (610) 313-8212 or at jroebuck@phillynews.com.