A white man in Winthrop, Massachusetts, allegedly rammed a stolen truck into a house on Saturday, then fatally shot a retired Black state trooper and a Black Air Force veteran. The suspect, who is identified as 28-year-old Nathan Allen, was killed by police shortly after shooting 58-year-old David L. Green and 60-year-old Ramona Cooper, ABC News reported. 

“Yesterday, the violence and hate that unfortunately is all too common in this nation, came to the quiet town of Winthrop which was rocked by two murders and the subsequent death of the shooter by a member of law enforcement," the Suffolk County District Attorney's Office said in a statement.

Yesterday, retired Massachusetts State Trooper David Green and Air Force Staff Sergeant Ramona Cooper were murdered in Winthrop by a man who drew swastikas and handwrote messages about whites being superior and “apex predators.” pic.twitter.com/kBRt6Wmwtv

— DA Rachael Rollins (@DARollins) June 28, 2021

While Cooper served in the Air Force as a staff sergeant, Green was a retired Massachusetts state trooper who served for 36 years as a member of law enforcement.

"They were both gunned down by the shooter," the attorney's office announced. "Staff Sergeant Cooper was shot in the back multiple times and Trooper Green was shot in the head, neck, and torso repeatedly."

Police said the suspect first stole a box truck and crashed the vehicle into a home, which didn't occupy any people at the time, according to ABC News. Allen allegedly walked away from the wreckage, interacted with multiple people and shot the two Black people he encountered at the scene. A police sergeant shot the man shortly after ordering him to drop his weapon.

"This Police Sergeant, like Trooper Green and Staff Sergeant Cooper, is a hero," the attorney's office stated. "The Sergeant stopped a volatile and escalating situation, saving lives, and protecting the community he serves."

The investigation so far has revealed that the suspect drew swastikas and wrote about whites being "apex predators." According to District Attorney Rachael Rollins, the individual was married, employed, had a Ph.D. and no criminal history.

Rollins added that the suspect had "troubling white supremacist rhetoric found in [his] own handwriting," in addition to evidence of "anti-Semitic and racist statements against Black individuals."

Deputies plan to share more details in the coming days.

"As the investigation progresses, we will keep the impacted families apprised," the attorney's office stated. "They deserve answers about their loved one’s deaths. When it is appropriate to do so, we will share additional information with the public.”

Colonel Christopher Mason of the Massachusetts State Police said Green joined the Metropolitan District Commission Police in 1980 and became a Massachusetts state trooper in 1992.

"Trooper Green was widely respected and well-liked by his fellow Troopers, several of whom yesterday described him as a 'true gentleman' and always courteous to the public and meticulous in his duties," Mason said in a statement. "He was held in equally high regard by his neighbors and friends in Winthrop." 

Ramona’s son, Gary, said his mother "was a good person."

“She was the type of person to help anyone out,” the devastated son said, according to CBSN Boston. “You know we’re in 2021. We shouldn’t be hating on other people based on the color of their skin, but I guess we are not there yet. I got sick to my stomach when I found out it was racially motivated.”