Mr Collins, 23, was visiting friends at the College Park campus when he was stabbed in the chest with a knife.
The victim was commissioned as a US Army lieutenant two days earlier.
He was set to graduate from Bowie State University on Tuesday.
Local police asked the FBI to help in the investigation after discovering Mr Urbanski belonged to a Facebook group called "Alt-Reich Nation".
The online community featured disparaging content about African Americans, women, Jews and others, according to University of Maryland Police Chief David Mitchell.
District Court Judge Patrice Lewis said there was "clear and convincing" evidence he "is an absolute danger to the community".
University of Maryland President Wallace D Loh said in a statement the attack had "shocked, saddened, and angered our community and beyond".
Dr Artie Lee Travis, Bowie State's vice-president of student affairs, said he hopes the investigation moves forward.
"Hate has no place in America," he said.
"Hate has no place on a college campus, where young minds are coming together to try to change the world."
'Alt-Reich' member charged in fatal stabbing of black student - BBC News
The victim was commissioned as a US Army lieutenant two days earlier.
He was set to graduate from Bowie State University on Tuesday.
Local police asked the FBI to help in the investigation after discovering Mr Urbanski belonged to a Facebook group called "Alt-Reich Nation".
The online community featured disparaging content about African Americans, women, Jews and others, according to University of Maryland Police Chief David Mitchell.
District Court Judge Patrice Lewis said there was "clear and convincing" evidence he "is an absolute danger to the community".
University of Maryland President Wallace D Loh said in a statement the attack had "shocked, saddened, and angered our community and beyond".
Dr Artie Lee Travis, Bowie State's vice-president of student affairs, said he hopes the investigation moves forward.
"Hate has no place in America," he said.
"Hate has no place on a college campus, where young minds are coming together to try to change the world."
'Alt-Reich' member charged in fatal stabbing of black student - BBC News