Police arrested a man Wednesday morning in connection with a suspicious device found earlier in the week.
Maynard Police said William O’Neil, 51 of Maynard, is charged with placing an explosive device and possessing an explosive device, and that more charges may follow.
He was ordered held pending a dangerousness hearing in Concord District Court Wednesday.
He was arrested at his Demars Street home around 5:30 a.m., two days after a neighbor called 911 to report a suspicious package left on his porch.
The Massachusetts State Police Bomb Squad rendered that device safe, and authorities said a fingerprint found on that device linked it to O’Neil.
Read more: CBS Boston