He identified a Russian national living in Miami named “Svetlana B” who frequently flew in Melgen’s private jet to parties in the Dominican Republic.

“This girl is one of the most regular participants in the activities the Doctor arranges for the Senator,” Williams wrote. “She has traveled with them in the jet, sailed with them in the yacht, and has repeatedly visited the Doctor’s house.”

Public records show that a woman named Svitlana Buchyk got into a minor crash while driving a Chevrolet Impala on Miracle Mile in Coral Gables in 2010. The car belonged to Melgen’s wife. Buchyk gave Melgen’s North Palm Beach address as her own.

Buchyk spoke briefly with a Miami Herald reporter by telephone Thursday, saying she had worked for Melgen in the past.

But Buchyk wouldn’t answer questions on the type of work she did, and was eager to defend Melgen — particularly when asked about stories of Melgen’s alleged sexual liaisons with prostitutes.

“He is an amazing person,” she said. “He was always with his family. There is nothing else I can say.”

Buchyk added that many women would have liked to have spent time with her former employer.

“He treated me well,” she said. “He had money. He was very generous.”

Subsequent phone calls to “Svetlana” went to voicemail.

The emails also led to some dead ends.

Williams listed a phone number for another woman, citing her by name, supposedly one of Menendez’s “favorite girls.” The number is now disconnected.

He gave another number where Maria and Geraldine, the Brazilian and Colombian, could supposedly be reached. But now that number belongs to Mileyi Bencosme, who said she got the phone about six months ago.

Bencosme, 50, lives in Santiago de los Caballeros — about two hours from Santo Domingo — and said she had never heard of the women. In the past week, she has received dozens of calls from journalists in Washington, D.C., New York, Los Angeles, Miami, and other cities, asking for these women. Most of the calls were in English.

Bencosme said she’s starting to feel like a victim of phone harassment.

“This morning somebody called me again and asked who I really was,” she said on Saturday morning. “The question is, who are these women?”

Vinicio Castillo Semán, a cousin of Melgen, has another question. He said he will ask Dominican authorities to investigate who is behind the emails.

“These stories about prostitutes have been completely fabricated and it’s audacious to me that these allegations can be spread anonymously,” said Castillo Semán, who has also been accused of organizing parties with prostitutes for Menendez.

“This scandal has been created out of thin air.”

Miami Herald staff writers Amy Sherman, Marc Caputo and Daniel Chang contributed to this report.