A kidnapping suspect being held in Boston is a German man who lived in the guesthouse of a Los Angeles-area couple who disappeared in 1985.

Los Angeles County sheriff’s investigators have identified Christian Gerhartsreiter as the same man who used the aliases Clark Rockefeller and Christopher Chichester, spokesman Steve Whitmore told The Associated Press.

Homicide detectives “are confident that Rockefeller is Christian Gerhartsreiter and the person named Christopher Chichester who was living in the Los Angeles area in 1985.”

Under the Chichester name, Gerhartsreiter rented a guesthouse at the home of Jonathan and Linda Sohus, who vanished in 1985 while living in wealthy San Marino, about 10 miles northeast of Los Angeles.

At the time of his August 2 arrest in Baltimore, Gerhartsreiter had been living under the Rockefeller name. Police have said he snatched his daughter from a Boston street on July 27 in an elaborately planned kidnapping in which he hired two people to drive them to New York.

In the San Marino case, skeletal remains were unearthed at the Sohus property in 1994 when new owners were putting in a swimming pool. Investigators at the time were unable to identify the bones but believed they probably belonged to Jonathan Sohus. Investigators have requested a new round of forensic tests, Whitmore said.

Stephen Hrones, his attorney in the Boston kidnapping case, said Rockefeller does not remember his childhood in Germany or his time in California during the 1980s.

Not remembering works if you only face circumstantial evidence.