Bronx, NY – Investigators suspect that a third slashing in the Bronx may also have been the work of the notorious Trinitarios street gang that police have already connected to the brutal murder of a New York Police Department (NYPD) Explorer and the stabbing of an unnamed 14 year old (video below).

Police released surveillance video on Sunday of suspects whom the police believe committed yet another gang-related slashing, this time with a 17-year-old male victim, WCBS reported.

The victim was attacked at about 8:30 a.m. on June 8 near the corner of 196th Street and Jerome Avenue in Fordham Manor, WPIX reported.

Police said a group of male suspects approached the teenage boy and then slashed his head with a knife and punched him throughout his body, according to WPIX.

The victim was taken to the hospital, and has since been released.

The Trinitarios are a violent street gang of Dominican descent. They prefer knives or machetes, as were used to murder Lesandro “Junior” Guzman-Feliz on June 20. Police believe that gang members wrongly thought Guzman-Feliz was connected to a pornographic rap video that featured a teenage girl who was somehow related to the gang.

Two days before Guzman-Feliz was attacked, the gang attacked a 14-year-old boy with knives on the median strip of the Bronx River Parkway.

The original Trinitarios gang formed in prison in the 90s, and whether modern gang members are affiliated with the original organization or not, all follow the same cutthroat rules, according to WCBS.

According to WPIX, more than 1,000 members of the Trinitarios gang are believed to be operating in New York City. The savage group is also active in Milan, Italy and Madrid, Spain.

Federal documents obtained by WCBS showed that new members must study the rules and history of the gang, and swear an oath to “always support each other.”

“If a Trinitarios member is wounded the Trinitarios will avenge the assault,” and a gang member can be “ordered to commit acts of violence against another person,” the federal documents said.

Police have determined that first two attacks were related, and believe the June 8 attack is also the work of the deadly Trinitarios.

“There have been number of incidents throughout the city involving Trinitarios,” NYPD Commissioner James O’Neill said on Friday, according to WCBS. “I’m not prepared to say yet how, but I can say they are connected.”

Residents of the Bronx have said they do not feel safe living amongst the gang members.

“If you go mess with them, they do have a reputation of retaliating,” Bronx resident Gabrielle Perez told WCBS.

NYPD Chief of Detectives Dermott Shea said the department needed to be fighting harder to put a stop to the gang violence.

The chief told WCBS that the department has “a comprehensive plan of action” to take down the Trinitarios and other violent gangs, and that they planned to dedicate additional resources to help curb the recent increase in violent gang activity.

Police have arrested a total of eight suspected Trinitarios gang members in connection with Guzman-Feliz’s death.

On Tuesday, officers also arrested 21-year-old Ramon Paulino, another accused Trinitarios member, for the June 18 stabbing the 14-year-old.

Investigators were continuing their search for the other men responsible for that attack.

The Trinitarios’ affinity for knives and blades was further evidenced in a rap video that was posted online on Sunday night.

The video prominently featured Jose “Canelito” Muniz, who has been arrested in connection with the machete murder of Guzman-Feliz, WPIX reported.

“I’m hotter than a Guillotine,” Muniz rapped in Spanish, according to WPIX. “My mentality is set up like that of an Iraqi.”

On Friday, law enforcement sources confirmed that Muniz and at least one other murder suspect appeared in the video, which also showed the gangsters brandishing firearms and waving cash, WPIX reported.

You can see video of the suspects in the June 2 slashing attack in the video below: