Bio

David Allen Lucas was born in 1956 on an American military installation in the Philippines. He was an American citizen and later grew up in the United States. His father was a naval officer, and the family moved back to the United States when Lucas was still young. Later trial testimony described a difficult childhood, family conflict, and emotional problems. Defense witnesses during the penalty phase also described his father as harsh and violent, and they argued that Lucas had long-term psychological issues.

As an adult, Lucas lived in San Diego County, California. He worked as a carpet cleaner and operated a carpet-cleaning business in the East County area. He was living in or around Spring Valley by the time he became connected to the murders.

Lucas was later tied to several violent attacks in San Diego County between 1979 and 1984. The attacks involved women and children, and several victims had their throats slashed. Because of that pattern, the case became known in local reporting as the “throat-slashing” murder case.

Murder Story

The first murders for which David Allen Lucas was convicted happened on May 4, 1979, in Normal Heights, San Diego. The victims were Suzanne Camille Jacobs, age 31, and her 3-year-old son, Colin Jacobs. Both were found dead in their home. Their throats had been slashed. The killings remained unsolved for years before Lucas was later connected to them.

In June 1984, Lucas attacked Jodie Santiago Robertson, a woman visiting from Seattle. She was abducted after leaving a nightclub and survived the attack. She later identified Lucas as her attacker. Her case became important because it linked Lucas to the same pattern of knife violence seen in the murder cases.

On November 20, 1984, Anne Catherine Swanke, a 22-year-old University of San Diego student, disappeared after her car ran out of gas near La Mesa. Police later found her car with a gas can nearby. Her purse and wallet were still inside, and there was no clear sign of a struggle at the vehicle.

Swanke’s body was found on November 24, 1984, in a remote area of Spring Valley. Her throat had been slashed. Her murder became one of the key cases in the prosecution against Lucas.

Lucas was arrested in December 1984 and later charged in multiple attacks and killings. The case became one of the longest and most complex murder trials in San Diego history. Prosecutors used witness identifications, crime-scene evidence, and blood evidence to connect Lucas to the murders and attempted murder.

On June 21, 1989, a jury convicted Lucas of the first-degree murders of Suzanne Jacobs, Colin Jacobs, and Anne Swanke. He was also convicted of kidnapping and attempting to murder Jodie Santiago Robertson. The jury did not convict him in every case originally charged. He was acquitted in the murder of Gayle Garcia, and the jury deadlocked on the murders of Rhonda Strang and Amber Fisher.

After the penalty phase, the jury recommended death. On September 19, 1989, Judge Laura Palmer Hammes formally sentenced Lucas to death for the three murder convictions. Later charges involving Strang and Fisher were dismissed because prosecutors had already obtained death sentences for the confirmed convictions.

Lucas appealed for many years. In 2014, the California Supreme Court affirmed his convictions and death sentence, rejecting claims that trial errors required reversal.