Mark William Cunningham

In 2003, Discovery Channel tv show The New Detectives aired the episode "Random Targets", which examined Cunningham's case along with Timothy Wilson Spencer.

In November 1983, ballistics evidence showed that there was a 90 percent chance that the same gun had been used in the three killings. Despite the breakthrough, at the time, police had few leads, and for over a year, detectives were frustrated as the case sat unsolved with no suspects. However, on January 3, 1985, a man called police to turn in his friend Mark William Cunningham, whom he overheard bragging about killing three men.

On April 27, 1983, Santa Cruz authorities responded to call about a burning vehicle found along East Zayante Road. Firemen arrived and were able to stop the fire, but soon after they discovered a dead body lying in the front seat. The man, later identified as 20-year-old electronics worker Mark Cameron Ferrell, was determined to have been shot multiple times before the killer ignited his car on fire. A bullet was recovered from Ferrell's chest which was determined to have come from an Old West style .38 caliber revolver.

On June 7, 1983, two surfers on Laguna Beach found the bodies of two men lying face down on a trail leading from the beach to Highway 1. Authorities found that the two had been shot. The two men were identified as 30-year-old Hon Mau Lee and 29-year-old Chen Chien Ying, both of Chinatown, Los Angeles. Police noted the randomness of the killings; the killer had not tried to hide the bodies, and investigators speculated the perpetrator shot the two at random while they walked down the trail. In addition, none of the men's personal and valuable possessions had been taken.

Cunningham was indicted on three counts of first-degree murder. He pleaded not guilty. In October 1985, it was announced that prosecutors would seek the death penalty. In January 1988, Cunningham went to trial. The star witness in the case was Bohnen. Bohnen took the stand and told the jury that on June 7, 1983, after Cunningham had picked her up from school, they stopped across from Laguna Beach. Cunningham then spotted the two men walking up the trail to the beach and pulled a gun from under his seat then followed the men up the trail. Shortly after, according to Bohnen, Cunningham sprinted back to his vehicle and frantically drove away.

In addition, Cunningham's girlfriend Lynn Bohnen came forward. She had met Cunningham in 1981, when she was 14 and Cunningham was 21, and the two started a relationship, though the two did stop dating after a while. In 1984 she broke down to her new boyfriend, Steve Walker, that she had been with Cunningham the day of Lee and Ying's murders, and that she knew he had killed him. She later told detectives the same story. Following this, Cunningham was arrested.

Mark William Cunningham (born January 27, 1960) is an American serial killer and arsonist who shot and killed three men at random in Santa Cruz, California from April to June 1983. The murders were not linked together until months later, when forensic evidence concluded that the victims had been shot with the same gun. Cunningham was arrested the following year, was tried, convicted, and sentenced to life in prison in 1988.