A Milford mother whose son was killed by an illegal immigrant in a 2011 crash said charges against four Guatemalans in a Framingham beating and rape last week show the need for a border wall, and show why she and so many other Americans are backing Donald Trump.

“We need to build something to secure our southern border so that when we do deport these people, it’s not a revolving door,” said Maureen Maloney, noting a Herald report that two of the men had been deported in 2014.

Maloney’s son, Matthew Denice, 23, was killed in 2011 when his motorcycle was struck by a pickup truck driven by Nicolas Dutan Guaman, an Ecuadorian who was in the country illegally. Guaman was sentenced to 12 to 14 years for the crash, in which Denice was pinned underneath a tire well and dragged to his death.

“It’s sick enough that we have this stuff in our own society,” Maloney added, “but when we’re letting foreigners come in here and abuse us, somebody has to put a stop to it.”

Maloney said she and her husband met privately with Trump about her son’s death in August. She said she believes Trump is the only candidate who will take action. “We need somebody like him, or somebody that’s going to take the stance that he’s taken right now, to get our country back on track.”

Maloney called accounts of last Sunday’s attack in Framingham “totally horrific, all capitals, with exclamations.” Four men are accused of abducting a woman who was pinned down and raped on a bed as her boyfriend was beaten.

Authorities said the couple encountered the four illegal immigrants — brothers Elmer Diaz, 19; Ariel Diaz, 24; and Adan Diaz, 32; as well as Marlon Josue Jarquin-Felipe, 27 — while out walking.

Ariel Diaz and Jarquin-Felipe were deported in 2014 and later returned. Adan Diaz was arrested for drunken driving in Framingham in February, and Ariel Diaz was arrested for drunken driving in December, but an immigration official said the federal agency did not appear to have been made aware of the arrests. Federal immigration officials have requested detainers on all four.

Charles Sisitsky, chairman of the Framingham Board of Selectmen, said the issue may be discussed at a future meeting, but said he isn’t concerned the crimes are an outgrowth of the town’s friendliness to immigrants, whose businesses he said keep the downtown thriving.

“I’m sure we’ll get a report from the police chief and see what he says in terms of his side of the story,” Sisitsky said. “Any kind of crime like that concerns me. It’s obviously not a good thing, but it’s not unique to Framingham by any stretch. It’s something we just have to deal with.”

Framingham police Chief Kenneth Ferguson did not respond to a request for comment.

Maloney said, “People are voting and people are tired of this. Even if Hillary, God forbid, was to be elected, I don’t think this problem is going to go away. The people are starting to speak up about it, and wanting our laws enforced.”