A female friend's wannabe gangster son executed a blue city police officer, fearing retaliation.

On the night of Oct. 16, 2001, Corporal Michael Douglas Beverly was shot while standing in front of his unmarked police car.

The 11-year veteran of Pennsylvania’s Chester Police Department was found lying on his back and shaking at the scene, with multiple bullet holes on his face and chest. His car keys were still clenched in his hand, and his gun was secured in his holster. Officers rushed to the scene.

The investigators attempted to contact the 36-year-old, but he did not respond. Beverly, who was 16 years old, left behind a husband and five children.

Chris McMullin, a lieutenant with the Bucks County Sheriff's Office and a Philadelphia native, stated to Planet Chronicle Digital that this person was good.

"McMullin stated that he was committed to his job, family, and community."

The crime-ridden Chester Gardens area is the focus of Oxygen's true-crime series, "Philly Homicide," as they explore the murder that occurred there.

The documentary includes interviews with former and current Philadelphia-area detectives, as well as family members and individuals closely connected to cases that occurred in the city known as America's birthplace.

Beverly's killer was relentlessly pursued by the police, as described by McMullin, who was previously a detective with the Bensalem Police Department and had spent several years as a patrol officer with the Philadelphia Police Department.

"McMullin stated that one of the reasons for sharing this story, along with the other themes explored in the series, was to highlight the dedication of detectives in pursuing justice for victims and their families. Their commitment to protecting society was a key message he wanted to convey. In particular, the detectives' pledge to solve the murder of Corporal Beverly was a central focus of the story."

The Boyle Street Boys, a street gang, were known for their "extremely violent tactics" in controlling their younger members and "street-level salespeople." Their main objective was to fiercely protect their "turf" for cocaine sales and distribution.

Loyalty bound the members together, who perceived themselves as a family. Senior members would debate whether individuals deemed a threat required elimination.

"McMullin stated, "They followed through on their threats with violence.""

The community remained tight-lipped, refusing to cooperate with investigators.

"McMullin stated that Chester is a rough city, and he has encountered instances where individuals were hesitant to communicate with him due to fear of retaliation. It is understandable, given the challenging circumstances. To earn and maintain the public's trust, one must consistently uphold their promises. No one should be blamed for being afraid to speak, especially in this case, where a gang was terrorizing the entire city."

The shooting death of his patrol partner, Connie Hawkins, in 1993 deeply affected Beverly, and he remained haunted by it. Despite this, he was actively involved with the Delaware County Law Enforcement Memorial Foundation, which aimed to honor fallen officers in the line of duty. He wore a bracelet in Hawkins' memory.

Beverly found comfort in engaging in activities with his kids. The media outlet stated that the ex-U.S. Marine Corps veteran was involved with the Rose Tree Soccer League and served as an assistant basketball coach.

Beverly, a detective, discovered that she had been trying to mentor a young man named Maurice Day in the community. However, the last person she called before her murder was not Day, but Gloria Adams, who lived nearby. Beverly called Adams just 10 minutes before being shot to death.

Detectives were informed by a visibly shaken Adams that she had known Beverly for years. She described him as a positive role model for her son, Day. Adams explained how Beverly tried to talk to the 18-year-old, who seemed to be looking for a chance to join the Boyle Street Boys. However, when they questioned Day, he claimed that he had been at his girlfriend's house on the night of the shooting. Adams corroborated his claim.

The case involving Day's shooting of Beverly went cold until October 2002. A woman arrested for drug possession claimed she had witnessed Day committing the crime. The prosecutor, who initially stated that Day had "executed" Beverly, later argued that Day had been motivated to kill due to being "teased, taunted, and ridiculed" by members of the Boyle Street Boys, as reported by the Delco Times.

In the series, Day felt threatened by Beverly's close relationship with his mother, as he believed it would damage his street reputation.

"McMullin stated that he did not want to comment on the situation as he never spoke to the kid. He believed it was a peer pressure issue and the kid did not want to be labeled as a rat. However, he could not say for certain why the kid took that action."

Beverly's killer was not found, according to McMullin, but the police did not give up on the investigation.

GET REAL TIME UPDATES DIRECTLY ON THE TRUE CRIME HUB

A gang member later testified that Day confessed to killing Beverly. Additionally, Day's cousin, who was not a gang member, provided crucial testimony.

The witness stated to the jury, as reported by the outlet, that the suspect admitted to killing the cop by shooting him.

On the 20th day, Day was convicted of first-degree murder and received a sentence of life without parole. In the episode, Beverly's sister expresses satisfaction with the verdict, while Day's family advocates for the death penalty.

"McMullin remarked, "I believe she's satisfied knowing that he can remain seated and contemplate his actions for the rest of his life." Some individuals consider that to be more dreadful than death."

Beverly's legacy and those who never gave up on finding McMullin's killer will be remembered today.

"Detectives in the Philadelphia region are dedicated to protecting society and solving cases requires a lot of dedication and determination, McMullin stated. While there have been some bad cops, there are many more good ones."

The "Philly Homicide" episode "End of Watch" will be shown on Oct. 26 at 9 p.m.