The brother of a woman allegedly murdered by a suspected Stanford University serial killer told DailyMail.com he is looking forward to justice finally being served 46 years after the slaying.

John Arthur Getreu, 74, was arrested last November for the murder of 21-year-old Leslie Perlov in Palo Alto in 1973, after DNA evidence linked him to the crime.

Last week detectives charged Getreu with a second murder: Janet Ann Taylor, 21, whose case has been cold for 45 years.

Investigators said Getreu was also convicted of the sexual assault and murder of a young woman in Germany in the 1960s, when he was a teenager.

Perlov’s brother, Craig, tells DailyMail.com that he will attend the trial, and if found guilty he hopes Getreu will be put away for the rest of his life.

‘I’m hoping he will [serve a long sentence], but you never know what juries will do,’ the bereaved brother said, speaking at his home in Menlo, California, less than two miles from the Stanford University campus.

‘I don’t think there’s much incentive for him to plead guilty,’ the 64-year-old added. ‘I’ll probably want to be at the trial. You never know how these things will pan out.’

Both of Getreu’s alleged victims attended Stanford, where the suspected killer worked as a carpenter and security guard.

His German murder and rape conviction, as well as a 1975 rape conviction in Palo Alto, flagged Getreu as a potential suspect for cold case detectives reviewing Perlov’s murder file last year.

Perlov’s death was ruled a homicide following an autopsy, due to the fact she had been strangled and left with a pair of tights stuffed into her mouth.

The investigators followed Getreu and obtained his DNA from a discarded item. Police said when the sample was analyzed, they found it matched DNA from the crime scene.

It was the evidence they needed to charge the suspected serial killer in November.

Police released this photograph of Perlov’s orange Chevy Nova, discovered the day she died abandoned at the entrance of an old quarry

Janet Ann Taylor, 21, disappeared on March 24, 1974 while hitchhiking from a friend’s house in Palo Alto to her home and is believed to have been murdered by Getreu

Alerted by the similarities with Perlov’s case, detectives used modern techniques to re-analyze DNA from Taylor’s clothing, preserved after her body was found discovered by a delivery driver on the side of the highway west of Interstate 280 in 1974. 

They found another match with Getreu.

The results initially showed the profile of an unidentified man, who was only found when the investigators collaborated with Virginia-based DNA technology company, Parabon NanoLabs. 

Parabon looked into finding the unknown suspect’s relatives through DNA as a way of tracking down the unidentified person’s name.

A Sheriff’s office statement read: ‘Parabon submitted a genetic data profile created from the unknown crime scene DNA sample to a public genetic genealogy database for comparison in hopes of finding individuals who share significant amounts of DNA with the unknown subject.’

Craig said he was deeply affected when he heard the news of a second alleged victim on Friday.

‘I just found out about that yesterday,’ he said. ‘Last November was a lot worse, but all the old feelings came rushing back.’

He told DailyMail.com he had faith that detectives would uncover any other killings connected to the Stanford Slayer.

‘Germany held him for two years and let him go. Why I don’t know. I don’t understand that,’ Craig said. ‘You kind of think, this couldn’t have been a one-time thing.

‘I know the detectives are checking all his web of connections, and they’re really very good.’ 

John Arthur Getreu was previously employed by Stanford University in California (pictured), where two of his alleged victims were students 

Rick Jackson, a cold case investigator with the San Mateo County Sheriff’s Office, told a press conference on Thursday that he is scouring their archives for more possible victims. 

‘Realistically, you look at a guy who has now been connected to three sexually motivated murders, now that covers [his] ages 18 to almost 30,’ Jackson said.

‘Those are still prime years for someone who has such an impulse, a driven ability to commit these kind of violent crimes.

‘We’re looking obviously within our county,’ he added. ‘We’re reaching out to other agencies across the country and other areas in the world where he has spent time.’

The newly identified alleged victim, Taylor, was a Stanford graduate and the daughter of former Stanford football coach and athletics director Chuck Taylor.

The former coach, now 86, and his wife Janet 83, still live in the same house where their murdered daughter grew up, in a leafy, affluent suburb just minutes of the university campus.

Overwhelmed by the news of the new suspect in their daughter’s case, which has remained unsolved for four and a half decades, the elderly couple declined to comment.