Keith Harrington—Patty Harrington

Keith Harrington and Patty Harrington were newlyweds building a life together in Dana Point when they were murdered in their home. Their relationship is presented through the ordinary closeness of shared plans, family gatherings, and a household they had recently improved; after their deaths, those same details became fragments their family and investigators returned to while trying to understand what had happened.

Marriage and shared life

Keith was the youngest of Roger Harrington’s four sons and a third-year medical student at the University of California, Irvine. Before meeting Patty, he had had a long-term relationship with a fellow undergraduate premedical student. Their breakup surprised Roger, who had assumed they would marry. Keith met Patty at UCI Medical Center, and the two married within a year. Patty was a registered nurse. Roger privately wondered whether Keith was moving too quickly after his previous relationship, but he also observed that Patty and Keith seemed devoted to one another. The book offers no sustained account of their courtship; instead, it establishes their partnership through their swift marriage and the life they made together.

That life was centered, for the time being, in a house Roger owned at 33381 Cockleshell Drive in Niguel Shores, a gated community in Dana Point. Roger’s own main residence was a condo in Lakewood, nearer his Long Beach office, but he was glad that Keith and Patty were close by. The arrangement made their home a family gathering place as well as the couple’s residence. Roger referred to them together as the kids and spent time with both, describing a close and practical family connection rather than a distant father-son relationship.

A shared household

The couple’s domestic life appears in the evidence as a sequence of everyday particulars. Roger had recently helped them install a new sprinkler system in the yard, and the three of them had spent the previous Saturday clearing brush. That evening Keith and Patty hosted a barbecue for Patty’s father’s birthday. These shared tasks and occasions locate the marriage within an active family network: Roger was not merely visiting a son who had moved away but participating in the upkeep of the couple’s home and joining their celebrations.

On the night before they were found, Patty bought groceries at 9:48 p.m. A receipt and a call from her sister, Sue, help establish the couple’s last known ordinary evening together. Sue called at 11:00 p.m.; Keith answered, then handed the phone to Patty. Patty said they were in bed and that she expected an early-morning call from the nurse registry. The evidence places the attack after that call and before Patty failed to appear at work on Wednesday. In the record, their shared routine survives in small, time-stamped details: groceries, a family phone call, and the expectation of an early start.

The murders and their immediate aftermath

Roger arrived expecting to have dinner with Keith and Patty. A note under the doorbell, dated the previous day, indicated that friends had come by and asked the couple to call if plans had changed. Their cars were in the driveway, but the front door was locked, which Roger found unusual because they rarely locked up when home, particularly when expecting him. He let himself in with a key hidden above the patio trellis and carried the mail inside. The quiet house and familiar belongings initially gave him no explanation for the couple’s absence.

The bed in the guest room where Keith and Patty slept appeared made, but Roger noticed an unusual shape beneath the comforter. He discovered them lying side by side on their stomachs. The finding abruptly ended the ordinary visit he had anticipated and turned the home he had shared with them into the scene of their deaths. The evidence indicated no obvious forced entry or struggle; one sliding door may have been left unlocked. Investigators believed the killer could have entered after Patty’s late phone call, possibly using a brass sprinkler head from the recently installed yard system. The couple’s home was inside a community with a staffed gate, yet no one reported hearing anything.

The relationship in the investigation and in memory

The couple’s murders were later considered alongside the killing of Manuela Witthuhn. Criminalist Jim White saw similarities between the cases, including the killing of middle-class victims in bed with objects taken from the home, the removal of the weapons, and the presence of ligature marks. A medical connection also drew attention: Keith was a medical student, Patty worked as a nurse, and Manuela’s husband, David Witthuhn, had been a patient at a hospital in the area. White encouraged criminalist Mary Hong to prioritize the Harrington and Witthuhn cases; in 1996, their DNA profiles were among the profiles Hong compared. The investigation thus returned to Keith and Patty not only as a married couple but as victims whose case might help explain another couple’s deaths.

For Roger, the unresolved murders continued to shape life after their deaths. He hired a private investigator, offered a large reward, and arranged for friends and coworkers to be reinterviewed. He revisited his memories of time spent with Keith and Patty, but none of these efforts brought the answer he sought. Their murders remained a loop of disconnected details, while the ordinary evidence of their closeness—the house, the family visits, and Roger’s involvement in their daily life—made the absence harder to resolve. Three glass tubes from the cases were eventually tested in 1996, but Roger had died on March 8, 1995, before investigators received the results and contacted the families. The marriage is therefore remembered through two linked histories: the life they shared before the crime and the unanswered questions that continued to bind their family to the case afterward.