This pair of sketches from the San Francisco Police Department, Wednesday, February 6, 201

9, shows what a serial killer can look like in a cold case with at least five stabbing deaths in gay men in the middle of 1970s in San Francisco. The killer was called "Doodler" after he told someone who later became a victim and survived that he was a cartoon. It is one of several cases verified after the capture last year by "Golden State Killer" through DNA analysis.

The San Francisco police released new information Wednesday in the unsolved slayings of five gay men during the 1970s – called "The Doodler" serial killer – and offering a $ 100,000 reward in the hope of closing the case.

In a public council plea, the police published a new outline of what the suspect may look like today as well as a sound recording of a call to police sending an unknown man reporting a body along the beach after the first murder.

It's one of many cold cases, especially serial crimes that have been renewed interest after the golden assassin was arrested last year, police officer Greg McEachern said. Medical and technical advances in DNA forensics have made it possible for detectives to be interested in reopening old records.

"The interest in this case is no different than for all our cold cases. We take a look at cases that we believe are soluble and cases where the victims have never had justice," McEachern told to the reporters Wednesday. More: Golden State Killer suspects being tried on 13 murder charges in Sacramento

Between January 1974 and June 1975, five homosexual white men in San Francisco were killed and their bodies found around Ocean Beach area in town, McEachern said.

All five victims had similar staff years that led the police to believe their murder was linked, McEachern said.

"In the 1970s, this was poignant gay society and San Francisco," McEachern said.

At that time, a series of similar attacks occurred by homosexual white men in San Francisco. Two victim attacks at separate times in the same apartment complex gave similar descriptions of their attackers. A victim spoke to the police and provided information that led investigators to believe that the two cases were linked to the five murders, McEachern said.

In 1975, the police could outline the suspect from one of the victim's description of the man, Said McEachern. The police described him as 19-25 years old at that time, black, long and about six feet tall. The new sketch released Wednesday is an "age progression" based on the 1975 drawing.

The killer became known as "Doodler" because when one of the attacks victims met him, he outlined caricatures, said the McEach. The police say they believe the suspect lived in the Bay Area but not San Francisco and would come to town on the weekend.

In 1976, the police detained a suspicion of who was never charged. McEachner did not release his name, but said the police interviewed the man who is still alive and an interested person. He didn't want to say whether the person matches the sketches that were released.

The Associated Press announced that its coverage of the 1977 case quoted the police as saying they needed victims to testify to the suspect. A "well-known entertainer" and a diplomat were among three of the survivors who did not want to "get out of the closet" by witnessing, the AP reported. Cold Bag: 39 years later, a man in a cold stroke was drawn by high school students Michelle Martinko

In addition to information on the suspected murderer, the police will also find the caller who reported the body along the beach.

"If you are the person who called in 1974, we would like to talk to you about what you saw," McEachern said.

The call took place just before. audio recording.

"I think there may be a death on the beach," heard the man calling and saying. "I thought I saw someone lying there, but I wouldn't get too close to him because you never knew what could happen."

When the operator asked if the man wanted to give his name, he responded, "No, I don't think it's necessary. I just wanted to let someone know. Maybe he needs help or something. But I felt it was mine duty to report it. "

More: ] #############################################################################################################? 19659005] The police also believe that "Doodler" saw a psychiatrist with the surname "priest" practicing in East Bay and seeking information about him, McEachern said.

Investigators sent DNA evidence over the past year waiting for further results, McEarchern said. The DNA is in the police crime lab, not in an open source database that looks like the one who supported investigators to track and arrest the golden assassination.

McEarchern said police have been in contact with the victim's families and hope to give them closure.

Follow USA TODAY's Ryan Miller on Twitter @RyanW_Miller

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