One of the men convicted in the brutal machete slaying of 15-year-old Lesandro "Junior" Guzman-Feliz last week was involved in an attack against a correction officer Tuesday night -- just one in a string of attacks allegedly perpetrated by inmates against correction officers, the president of the correction officers union said during a press conference.

Jose Muniz, convicted as being the culprit with the machete who attacked Guzman-Feliz in a Bronx bodega last summer, left the officer he punched in the face at the Manhattan Detention Complex (MDC) with a dislocated shoulder, Correction Officers' Benevolent Association President Elias Husamudeen said.

Muniz's exact location at this time is unclear, although at some point he should be transferred to Rikers from MDC, Husamudeen said.

After a weeks-long trial filled with emotional testimonies, chilling revelations and graphic photos, Muniz was among the five defendants who were found guilty of murder in first and second degree, as well as conspiracy and gang assault charges last Friday in connection to the Guzman-Feliz murder.

Muniz was heard saying "Trinitarios to the day I die" as he left the courtroom following the guilty verdicts.

The case grabbed the attention of New Yorkers and across the nation, given that the brutal machete killing of the 15-year-old boy that took place inside a Bronx bodega in the summer of 2018 was captured on surveillance.

Video showed the boy being dragged outside the bodega and set upon by a gang of men who hacked at him as he struggled to defend himself. Ultimately, he was slashed in the neck and died after running to a hospital three blocks away.

Investigators say the group mistook Guzman-Feliz, who was not affiliated with any gang, for a member of the rival fraction of the Trinitarios gang. In total, more than a dozen suspects have been arrested in connection to the killing. Nine others charged in the killing are awaiting trial.

During the press conference, Husamudeen detailed the uptick of attacks against correction officers in recent weeks and urges the Department of Correction to immediately implement new safety measures to increase security in the city's jails.

Husamudeen also said that Muniz's case was one of two incidents of assualt against correction officers in the span of 24 hours.

According to Husamudeen, on Wednesday, an inmate choked a female corrections officer with his shirt in a pantry within Rikers. The officer hit her head as she fell to the floor. She’s expected to be OK. Three inmates and an officer kicked the pantry door to come to her rescue.

During the press conference, Husamudeen said the union is demanding the creation of a mental health facility to house mentally ill inmates, change the officer to inmate ratio from 1:50 to 1:20 and request lawmakers to punish those who break the law, making reference to a bill that lawmakers are mulling over that would reduce the amount of time a violent inmate could be segregated from everyone else. 

NBC 4 New York reached out to the Department of Correction for comment. 

“Our officers are brave public servants who make our jails safer. These attacks are deplorable and we take assaults on our officers very seriously. We are pursuing the re-arrest of those responsible,” Deputy Commissioner of Public Information Peter Thorne responded in a statement.