Serial killers still at large

This list has 10 unidentified serial killers still at large, and 1 possible serial killer still at large.

• The Alphabet Murderer 1971-1973

3 young girls were raped and strangled in America. In each case the victims first name, last name and the towns they were found in shared the same first letter.

• The Doodler 1974-1975

A man killed 14 gay men in San Francisco. He would sketch them in bars and sex clubs, wait until they were alone and then stab them.

• The Stoneman 1989

13 people in Calcutta were bludgeoned to death with a large rock. Police are uncertain whether a group or one man is responsible.

• The Highway of Tears 1969

Up to 43 women murdered on Canada's Highway 16. Mostly aboriginal women, some murders were charged to Robert Pickton. Most remain unsolved.

• Honolulu Strangler 1985-1986

Hawaii's first serial killer responsible for the deaths of 5 women. The women were found sexually assaulted and strangled.

• Hwaseong Serial Murders 1986-1991

10 women found gagged and murdered in South Korea. The largest amount of police officers of any investigation ever, 2 million were used in the resulting investigation.

• The Monster of Florence 1968-1985

7 couples making love in cars were stabbed and shot- the females mutilated. 4 Men were charged but many think the real killer was never caught.

• Original Night Stalker 1979-1986

Over 50 women were sexually assaulted and 10-12 murdered in California. The stalker followed them to their homes and spied on them before striking.

• Paturis Park Murders 2007-2008

The "Rainbow Maniac" murdered 13 gay men in Brazil. The park they were killed in is a gay meeting point, all but one were shot in the head.

• The Long Island Serial Killer 2007

10 bodies discovered so far all strangled & wrapped in sacks. Thought the killer has police ties, as his knowledge of police procedure allows him to avoid detection.

• The Zodiac Killer 1968-1969

Possibly still at large. Serial killer who killed 5 but claimed 37. He sent messages to the news center. Letters and crytograms contained with his identity that remain unsolved. His last known letter was received in 1976. This letter contained the identities of 5 people he wished to kill. Fortunatly none of them were killed. The case was reopened in 2007. Thousands of suspects. under 10 prime suspects but no possible conclusion. The killers identity remains unknown.