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Persistent Store Manager Helps Police Arrest Armed Robbery Suspect

WORCESTER COUNTY, MASSACHUSETTS, AUG 7 – Liam Chagnon threatened a store employee with a handgun to steal merchandise before being arrested nearby, police said. The victim was unharmed, and the investigation continues.

  • On August 5, 2025, Worcester police arrested 36-year-old Liam Chagnon for armed robbery at a liquor store on Southwest Cutoff.
  • The robbery occurred after Chagnon, who was a regular customer, threatened the clerk with a handgun while buying nips and cigarettes.
  • Store manager Mohamed Abdel-Mawla noticed Chagnon's suspicious, fast walking and nervous behavior, then followed him and alerted police by phone.
  • Abdel-Mawla described how the man carried a bag in his right hand, drew a handgun, and carefully used his left hand to open the door, then called 911.
  • Chagnon's arrest near an apartment complex followed Abdel-Mawla's persistent monitoring, and the Worcester Police Detective Bureau continues investigating the case.
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Boston 25 News broke the news in Boston, United States on Wednesday, August 6, 2025.
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