TUCSON, AZ (Tucson News Now) - A year and a half after her son was murdered, a grieving mother is pleading for someone to come forward.
Zachary Corbut was murdered during a home invasion in October 2015. He was 20 years old.
"I just want justice, justice for Zach," Ann Corbut told Tucson News Now via FaceTime from her home in Houston, TX.
Ann Corbut said she's tried everything including weekly calls to the Tucson Police Department and putting fliers up around the university area, but still her son's murder is unsolved.
Several people were in the home at the time of Zachary Corbut's death.
CRIME COVERAGE: The KOLD News 13 mugshots of the month are available HERE.
"There were multiple people involved in this act and I know those people talk, I know they do," she said. "There were people who know about this, there were too many people involved."
Now, Ann Corbut has increased the reward to $20,000 for information, and put her son's picture on bus benches and billboards in hopes someone picks up the phone.
"I just want someone to call into 88-CRIME, I know someone knows something," Corbut said while fighting back tears. "I just want someone who knows something to call in and solve this case."
Program Manager for 88-CRIME Linda McCollum said they will keep the caller anonymous.
"We do not have caller ID, we do not ask for personal information or any identifiers whatsoever from the information provider," she said.
Tucson police said even the smallest piece of information could help in the investigation.
"It doesn't make the pain or hurt go away, it doesn't close it for me either," Ann Corbut said.
Anyone with any information is asked to call 911 or 88-CRIME.
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