More: Profile of Robert Berdella David Berkowitz, better known as Son of Sam, is an infamous 1970s New York City serial killer who killed six people and wounded several others because a demon dog told him to do it.
More: Profile of David Berkowitz Arthur Gary Bishop went from being an honor student, Eagle Scout and teenage missionary to an obsessed pedophile and child killer, which he later attributed to the pornography that he was to exposed to while growing up.

The Evil Faces of Serial Killers The following gallery has pictures of the worst serial killers in U. history, the crimes that they committed, and where they are today.
Rodney Alcala is a convicted rapist, torturer and serial killer who evaded justice for 40 years.
They show leggy teenagers in bikinis and short-shorts on Southern California's sun-splashed beaches; young women in flowery blouses and hippie necklaces listening to music and smoking languidly; and girls wearing heavy makeup, apparently posing nude.
One photo shows a baby in a saggy diaper toddling near the shoreline, and another shows two young children in swimsuits washing off in an open-air shower on the beach.
Police have been overwhelmed with calls since they released more than 100 photos found in a serial killer's storage locker, more than 30-year-old pictures of unidentified girls and women in bell bottoms, bikinis and Farrah Fawcett hair.
They look like long-lost sisters, mothers and daughters to bereaved callers across the country and from as far away as Denmark.
Police have gotten more than 400 phone calls in a little more than a week.
The photos had been in the possession of Rodney Alcala, who has been in custody since 1979 and was recently convicted of murdering four young women and a 12-year-old girl. Prosecutors say Alcala used his camera to lure his victims, and he was seen taking pictures of the girl before she disappeared.
Dubbed the "Dating Game Killer" Alcala was once a contestant on the show, "The Dating Game," where he won a date with another contestant, however the date never happened because the woman found him to be too creepy.
See also: Profile of Serial Killer Rodney Alcala Richard Angelo was 26 years old when he went to work at Good Samaritan Hospital on Long Island in New York as a nurse in his life-long quest to help others, but instead killed 25 of his patients.
"Although we hope that the people depicted are not victims, we believe the release may help solve some cold cases and bring closure to victims' families." Anyone with information regarding the identities of the women and children in the photographs is asked to contact Huntington Beach Police at 714-375-5066 or the Orange County District Attorney's Office at 714-347-8492.