Thomson was arrested shortly after 1 a.m. on July 14 after Salisbury police found his car, a 1994 green Buick sedan, with the motor running, along the side of Lafayette Road with Thomson passed out in the front seat.
"I thought the vehicle was empty and dispatched Simmie's Garage," officer Timothy Hunter wrote in his police report. "As I approached the vehicle, I saw a male slumped over, his head near the passenger seat with an open can of Budweiser beer between his legs."
Hunter was able to gain access to the locked vehicle through an open window.
"I yelled in an attempt to get his attention," the report said. "With this not working, I began to shake his left arm. After doing this for five seconds, he opened his eyes and sat up yelling, 'Hey, what are you doing?'"
Hunter grabbed the beer can as well as another open can on the driver's side floorboard, at which Thomson yelled, "Hey, that's not fair."
Thomson smelled of alcohol, and his speech was slurred. When asked where he was, Thomson stated he was on Revere Beach, according to reports.
"He began to rumble how he was in the Marine Corps and was a former jail guard and wondered why I was doing this to him," the report states. "He attempted to get back in his vehicle, and I then grabbed him and pinned him between the driver side doors."
After resisting arrest and swinging wildly at police, Thomson was placed under arrest and forcefully placed into the police cruiser, according to police.
As police searched Thomson's vehicle, they found a large clear trash bag being used as a cooler with ice and approximately 10 cans of cold beer inside. The backseat had clothing and more boxes of empty and full beer cans, the report stated.
Once police began the booking process at the station, Thomson became increasingly angry and volatile, swearing and screaming nonstop at police, according to the report.
"He stated he has friends in the Irish mob who would find out where I live and 'take care of me,'" the report said. "He stated his friends will break our knees if we're lucky, and he stated he was in the Marine Corps combat fighting school and was also a brown belt. He rambled on how he served the country and wanted to know what branch I served in, the Salvation Army?"
When it was time for Thomson to take a Breathalyzer test, police uncuffed him from the rail. According to reports, he lunged at the Breathalyzer machine and punched it full force and knocked the breath test printer cover off.
"William was noncompliant and needed to be placed into an arm bar and escorted into the holding cell," the report said. "Upon being placed there, William began to attempt to flood the cell by flushing the toilet nonstop and running the sink."
Police shut off the water supply to the cell, and Thomson eventually passed out, according to reports.
As Salisbury police were investigating the incident, they realized Thomson was the same man who had come into the station a day earlier and brought three large coffees for officers.
"He told dispatcher Monica Carnes he wanted to apologize for what happened 12 years ago," the report stated. "Records show he was charged by Salisbury police in 1997 for disorderly conduct, resisting arrest and malicious destruction of property over $250 and spent five days in jail. William exhibited the same behavior then and needed to be pepper sprayed. He destroyed the toilet apparatus
while being held."