Hackettstown police announced an arrest in a series of arsons last week on Main Street.

Connor Cashman, 21, of Bayonne, New Jersey, was charged Monday in fires set between midnight and 5 a.m. Thursday at Michael's Salon, 220 Main St.; Topo Restaurant, 218 Main St.; and at 210 Main St., police said.

Police linked Cashman to the fires after someone saw photos of the arson perpetrator posted on the department's Facebook page, police said in a news release.

Cashman enrolled at Centenary College in Hackettstown for fall 2012, majoring in business management, according to college records. Centenary spokeswoman Annamaria Lalevee confirmed he remained a student there Monday.

Cashman is charged with criminal attempt to commit aggravated arson and burglary in the 210 Main St. incident; arson for 218 Main St. and disorderly conduct for 220 Main St.

He was sent to Warren County jail in lieu of $50,000 bail.