Justin Lum
Investigative Reporter Justin Lum originally joined Fox 10 in 2019 as a night side general assignment reporter. Justin extensively covered local crime, courts and justice while connecting with countless victims and their affected families.
Justin is known for his coverage of the Lori Vallow/Chad Daybell case that quickly became national news after several of his exclusive reports. Since law enforcement first introduced the public to the case of two missing kids from Arizona, Justin worked relentlessly to uncover every layer possible as authorities made a grim discovery after several months of investigating. In 2021, Justin was awarded a regional Emmy in the continuing coverage category.
Justin also helped launch "FOX 10 Investigates: Missing in Arizona" series to shed light on missing persons cases across the state, especially missing people of color who are marginalized by national media. He has a passion for helping loved ones search for much-needed answers.
Before coming to Phoenix, Justin reported in multiple markets including Fresno, CA and the Tri-Cities of Washington state where he also was a sports anchor.
At home, Justin is a husband to his wife Laura and a dad to his daughter Giselle. He loves spending quality time with them and also enjoys going to local restaurants and breweries. And with some luck, he will be cheering on his Raiders.
If you ever have a tip, don't hesitate to send Justin an email.
The latest from Justin Lum
AZ man gets decades-long prison sentence for Christmas Day murder
The family of Tyler Cardiel, who was killed on Christmas Day in 2020, finally has justice as the person responsible for his death will be in prison for decades.
Man pleads guilty in 2020 Christmas Day murder of Circle K employee
Timothy Bell, 35, pleaded guilty this week to second-degree murder, robbery and weapons misconduct for the 2020 Christmas Day shooting of 18-year-old Tyler Cardiel.
She showed warnings of a failing behavioral health system in rural AZ. Her crisis turned deadly.
"She was failed by the system as much as society was." As Angela Bouck crossed the center line in a fatal 2025 crash, her history of bipolar disorder & lack of a mental competency evaluation reveals a breakdown in Arizona’s behavioral healthcare system.
Green laser, death threats: Zariah Dodd murder suspect claims coercion, wants indictment tossed
Co-defendant Jechri James-Gillett is seeking to toss his indictment, claiming he was coerced into killing 16-year-old Zariah Dodd under threat of death.
Nancy Guthrie disappearance: Day 17 latest updates
Feb. 17 marks the seventeenth day since Nancy Guthrie, the 84-year-old mother of NBC "Today" show host Savannah Guthrie, disappeared from her Tucson-area home. Investigators believe she was taken against her will.
‘Just let her go’: Sheriff issues plea to suspect in Nancy Guthrie's disappearance
DNA tests on a glove found near Nancy Guthrie’s home yielded no matches in a national database. Pima County Sheriff Chris Nanos, citing a continued rescue mission, urged suspects to release her at a hospital as the search enters week three.
Nancy Guthrie: FBI awaits confirmation of DNA results from glove found in search
Sheriff Chris Nanos cleared Nancy Guthrie’s family as suspects Monday, calling them victims. Investigators now await DNA results from a glove found near the 84-year-old's home to check the national CODIS database for matches.
Nancy Guthrie disappearance: Day 16 latest updates
Over the weekend, authorities said they were awaiting final lab results for a glove found near the 84-year-old's residence that appears to match the masked suspect's glove in the surveillance video.
Vulnerable & vanishing: The struggle to protect Arizona’s foster youth in DCS care
Data from the Arizona Department of Child Safety reveals that 74% of missing foster children disappeared from group homes between January 2024 and September 2025, even as the agency reports 82% of all missing kids are found within 24 hours.
Yessenia Norman: Missing AZ woman stabbed 27 times; arrest made in case
An arrest has been made in the case of an Arizona woman who was found dead after she went missing for weeks.