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Notable Firearm Case Experience


An unavoidable function of professional policing is contact between the police and public. The Expert Ken Williams is no stranger to the rigors, split-second decisions or the unexpected dangers associated with policing. A few notable cases involving Mr. Williams’s experience as a Brockton Police Department officer demonstrate his reasonable thought processes while surviving a number of critical incidents.


In 1996, the Mr. Williams responded, as a patrolman, to a “shots fired” call in the City of Brockton. While responding to the area where the call originated Mr. Williams spotted a person walking approximately two blocks away from the crime scene. When the individual noticed Mr. Williams’s marked police cruiser traveling towards his direction Mr. Williams noticed this individual began to walk hurriedly, bladed his body in a suspicious manner as Mr. Williams passed by clutching his waistband, and Mr. Williams observed this same individual then run. It was Super bowl Sunday and many people were indoors. Due to the proximity of a felony call of “shots fired” and the suspicious activity observed Mr. Williams used reasonable judgment and turned his patrol car around without activating lights or siren and stopped this individual as he entered a convenience store. Shortly after initiating a terry stop Mr. Williams pat-frisked the individual for his safety and located an illegally concealed “smoking” handgun inside the waistband of that citizen resulting in his lawful arrest without escalating to the Use of Deadly Force. Forensically the gun recovered was later subsequently identified as a murder weapon linked to the “shots fired” call Mr. Williams responded to.


In 1997, Commonwealth v. Adilson Barbosa - Mr. Williams, as a patrolman, conducted a car stop after a neighboring community (Town of Stoughton) at about 3:30 AM reported an Armed Robbery in that community to the City of Brockton.  A clothing description was provided in a general broadcast (“GBC”). Mr. Williams located a suspicious vehicle at 4:00 AM with five individuals seated in a car parked and idling in an alley next to a Brockton convenience store. The affiant approached in a marked unit and noticed clothing being worn by occupants inside the car matched the earlier GBC description of suspects wanted for “Armed Robbery” in Stoughton. A rear seated passenger had his car door open with his right foot resting on the pavement and his left foot still inside the car. Seconds after Williams pulled his patrol car behind the suspects stopped car and shined a spotlight into the car the occupants made furtive movements inside the car and behaved suspiciously. The rear seated passenger placed his right foot quickly inside the car and slammed his door shut. The operator of the car placed the car into drive and began to accelerate forward. The affiant activated his lights & siren and conducted a felony car stop based on the Stoughton crime and what Williams suspected was a crime beginning to occur in Brockton. Williams exited his cruiser with a gun drawn and ordered the five occupants to show their hands and radioed area Brockton units for assistance. A reasonable person would conclude based on a GBC from a neighboring town with clothing description and the fact that a car was parked and idling in a alley next to a convenience store with individuals therein with similar clothing being worn, and the sudden reaction by the occupants once the police activated a spotlight heightened suspicion and warranted a detention and more police investigation. The defendants were arrested, several illegal guns were recovered and the defendants were positively identified as the armed robbers from the earlier Stoughton GBC too without Williams escalating to the Use of Deadly Force.



In 1998, Commonwealth v. Joel Baez - Mr. Williams, as a detective, worked with other narcotics detectives and the Massachusetts State Police Drug Task Force executed a felony arrest warrant at a defendant’s residence. The defendant ran from police. As Mr. Williams ran after the defendant and closed within a few feet of making a lawful arrest the defendant brandished a gun in his hand, turned and fired it at the affiant. Mr. Williams was not struck by the projectile. The subject was disarmed within seconds and arrested without the affiant escalating to a Use of Deadly Force. This was a critical shooting incident.


In 2003, Commonwealth v. Edgar Monteiro - Mr. Williams, as a detective, responded to a domestic violence call to assist Brockton patrol officers. Mr. Williams was the first to arrive at the scene. While inside a residence questioning the husband the wife returned home and told Williams her husband illegally possessed handguns and wanted to commit acts of violence against the wife before she fled the home and threatened to kill police officers. The defendant was taken into custody without incident and the firearms which he secreted were confiscated without escalating to a Use of Deadly Force. Monteiro threatened the wellbeing of Williams and his family which began a nine month long investigation and ended with the Massachusetts Attorney General filing charges against Edgar Monteiro, Carey James Monteiro and Amanda James for insurance fraud.

Mass AG Edgar Monteiro.


In 2004, Commonwealth v. Richard Smith - Mr. Williams, as a detective, assisted Brockton patrol in a high speed pursuit of a felon wanted for burglary at night of a city business. During the pursuit the felon rammed his car into Mr. Williams’s unmarked police cruiser. The affiant continued to pursue the defendant. The felon then drove down a dead end residential street. Once he reached the cul-de-sac the felon drove his car up the front lawn towards the backyard and then came back out to the road service on the opposite side of the home. The affiant did not follow the felon. Williams parked his cruiser on the road and ran diagonally across the cul-de-sac anticipating the felon would stop his car and a foot chase would ensue. Instead, Williams heard the roar of a car engine and the car being driven by the felon wouldn’t stop and if it struck Williams who was now in front of its path of travel the felon would of cause Williams serious bodily harm or perhaps death. Mr. Williams reasoned his life was in jeopardy upholstered-pointed-shot the felon who refused to obey commands to stop. The split second decision by Williams to escalate to the Use of Deadly Force was thoroughly investigated and determined to be a justified.


In 2005, Commonwealth v. Rupert Weeks - Mr. Williams, as a crime scene detective, conducted surveillance of a house party at 2:00 AM in the City of Brockton. As partygoers left the residence and began congregating in the roadway a argument outside the home erupted and a male brandished a firearm and fire it at another citizen. The projectile nearly hit the affiant in a undercover (“UC”) vehicle. The bullet missed the affiant seated in the UC by inches. The defendant was taken into custody and the handgun recovered without escalating to the Use of Deadly Force.


In 2007, Commonwealth v. Rashidi Smith -  Mr. Williams arrested a youth for the murder of another youth. The “smoking” gun used by the defendant was recovered at his feet after Mr. Williams followed and radioed for assistance to affect a car stop. The defendant was taken into custody without escalating to the Use of Deadly Force.

Marvin Constant homicide.


In 2007, Semedo v. City of Brockton a Civil Rights action. Mr. Williams, as a detective, assisted a citizen named Jose Semedo. Semedo, a African-American, was wrongfully arrested by several white police officers. This matter settled March 2013.


In 2008, Commonwealth v. Esau Depina - Mr. Williams, as a detective, responded to a home where shots were fired minutes earlier. The scene was frozen for several hours with teenagers inside the home while Mr. Williams petitioned the court for a search warrant of the occupants and that residence. A search warrant was granted and Williams located five firearms, ammunition and contraband inside the property. Defendants inside the home after being read Miranda assisted police with the discovery of additional illegally possessed guns in an attic space without the affiant or other police professionals escalating to the Use of Deadly Force.

Brockton teen held in gun case.


In 2009, Commonwealth v. Chris Santos - Mr. Williams, as a detective, at 2:00 AM in the morning encountered a sixteen year old with other youths on a public street. The sixteen year old separated from the crowd of fifteen other youths and began to walk in the opposite direction. The youth would not answer Williams’ questions and he kept his hands concealed in the pockets of his jacket. The youth and Williams were separated by a row of 4’ hedges. Williams unholstered-pointed his firearm at the youth and ordered the youth to “Show me your hands” repeatedly and Williams told the youth “Drop the gun.” The sixteen year old then placed on the ground a loaded semi-auto handgun and moved away from it as Williams ordered. The sixteen year old was arrested without further incident or the Use of Deadly Force.


As a Generalist Crime Scene Detective Mr. Williams has specialized experience investigating seventy (70) gun related crimes.




In 2012, Police Reform - Civil Action # 12 CV12193 - United States Ken Williams ex. rel. v. City of Brockton, Brockton Police Department, & John Does (1-100).!false-claims-act-litigation/c1dcb




2012-Present, Mr. Williams has conducted over thirty Questioned Document Examinations.


In 2013, Mr. Williams, as a public service, provided technical Forensic Video assistance to the Henry Estate by evaluating and re-publishing surveillance video concerning  a 10/17/2010 Pleasantville Police Officer Aaron Hess Use of Force incident resulting in the shooting death of Mr. Danroy "DJ" Henry.


In 2014, Mr. Williams was retained by The Fortin Law Firm LLC as a Wrongful Death Expert to evaluate and render an unbiased technical opinion concerning a 6/11/12 Sarasota County Sheriff's Office ("SCSO") Deputies Use of Force resulting in the death of Mr. Rodney Mitchell. 


In 2014, Mr. Williams was retained by The Fortin Law Firm LLC as a Wrongful Death Expert to evaluate and render an unbiased technical opinion concerning  a 1/27/2014 Manatee County Sheriff's Office ("MCSO") Deputies Use of Force resulting in the death of Mr. Elias Guadarrama.


In 2014, Mr. Williams provided technical assistance to The Law Offices of Mayo Bartlett, PLLC as a Wrongful Death Expert to evaluate and render an unbiased technical opinion concerning  a 11/19/2011 White Plains Department of Public Safety ("WPDPS") Use of Force resulting in the death of Mr. Kenneth Chamberlain Sr.


In 2015, Mr. Williams provided technical assistance by examining grand jury testimony and crime scene evidence and authored the "Michael Brown Evidence Opinion State of Missouri vs. Darren Wilson Southern Christian Leadership Conference & Partners" as a Wrongful Death Expert. This unbiased technical opinion concerned a 08/9/2014 Ferguson Police Department ("FPD") Use of Force resulting in the death of Mr. Michael Brown.


In 2015, Mr. Williams was retained by Byrnes Guillaume Attorney At Law, PLLC as a Wrongful Death Expert to evaluate and render an unbiased technical opinion concerning  a 2/14/2014 Palm Beach County Sheriff's ("PBCSO") Deputy Use of Force resulting in the death of Mr. Joseph Anesson.



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