SUGAR LAND, Texas -- Two 18-year-olds accused of killing 16-year-old Ashton Glover faced a judge Thursday after they were arrested in Michigan, KPRC Local 2 reported.

Matthew Ross McCombs and Sean Huston Brown, both 18, were apprehended Wednesday afternoon while trying to cross the U.S.-Canadian border into Ontario.

But they may return to Houston separately. McCombs chose to not fight extradition to Texas from Michigan. He could be back in Fort Bend County as early as Sunday, officials said.

Brown is fighting extradition, according to authorities, and he hired an attorney. Another hearing will be held next month.

They are both in the St. Claire County Jail in Michigan on $5 million bond.

Investigators said it appears the teens have never been in serious trouble before.

They have been charged with Glover's murder.

"(It's) probably going to be a gunshot wound to the head," said a Fort Bend County Sheriff's investigator.

Police said McCombs and Brown appeared disheveled when they tried to cross the border into Canada. A check of their tag number showed they were wanted for murder.

"They're two young guys that didn't look like they had much money," Maj. Jerry Clements of the Fort Bend County Sheriff's Office said. "They were kind of in disarray and whatnot, so they got to looking at them a little closer. When they got their IDs and ran their IDs, it came back with a hit off our national database on the warrants."

Fort Bend school officials said McCombs and Glover were incoming seniors at Clemens High School. Brown withdrew from school last year.

A makeshift sign on campus reads, "In Loving Memory of Ashton Glover." Trees tied with white ribbons line the surrounding streets.

Grief counselors were available to students and faculty Thursday until 5 p.m. at Clemens High School.

Classmates said the two boys were quiet in school.

"They never really caused that much trouble," one classmate said. "They were always to themselves. They must have had a huge grudge against her or something to do this."

Officials said McCombs and Brown were the last ones to see the girl alive.

Glover was last seen early Saturday at the It's A Grind coffee shop on Sweetwater Boulevard in Sugar Land. She was found dead by a construction crew laying utility lines off of Oil Field Road and Thompson's Ferry Road just before noon Monday.

McCombs and Brown were charged with murder on Wednesday.

Officials said McCombs and Brown live next door to each other.

Investigators went to the suspects' homes to search for evidence. They said at least a dozen bags and boxes containing clothing, computers, shovels and other items were removed from the garages and houses.

Officials said a shirt believed to be covered in blood was found in one of the homes.

Wright said the teens fled the area shortly after Glover's body was discovered. Authorities said Glover's red pickup truck was recovered Monday evening, about five miles from where her body was found.

A motive for the killing is not yet known.

Detectives were sent to Michigan to interview the suspects.

Glover's Mother Reacts To Arrests

Glover's mother, Sue Smith, said she was elated by the arrests of the teens accused of killing her daughter.

"They caught them just in the nick of time," Smith said. "My guys promised me they wouldn't let me down, and they didn't."

Smith described how she found out about the arrests.

"One detective called and told me the news," Smith said. "Another one called and said, 'Do you know?' I said, 'Yes, but tell me again.' Then another one would call and he said, 'Did you know?' I said, 'Yes, but tell me again.'"

Smith wondered why her daughter had to die.

"Why did they do something like that to my baby girl?" Smith asked. "She deserved better than that. She was a good girl."

Smith said her daughter would have done anything to help the teens.

"She would have done anything in the world for them," Smith said. "She would have given them the shirt off their back. I just can't imagine. You all have seen how much people loved that girl."

Smith said her family is not the only one in pain.

"Why they would choose to do something like that, not only jeopardize my emotions and my family, but their parents have to look at them in their face and know what they did," Smith said. "It's destroyed three families over just bad choices."

Funeral Arrangements Finalized

Funeral arrangements for Glover were finalized Wednesday.

A visitation will be held Friday beginning at 5 p.m. at the Settegast-Kopf funeral home on the Southwest Freeway near Williams Trace Boulevard.

The funeral services will be held Saturday at 10 a.m. at the First Colony Church of Christ in Sugar Land.

Glover will be laid to rest in Kennard, about three hours north of Houston.

Donations Made To Memorial Fund

A memorial fund was set up in Glover's name. Donations can be made at any Amegy Bank branch or they can be mailed to the following address.

First Colony Church of Christ
Ashton Glover Memorial Fund
2140 First Colony Blvd.
Sugar Land, TX 77479

Strangers dropped off donations at Amegy Bank in Sugar Land on Thursday.

"When you have children, you just can't imagine the pain. And if it helps the family, then you do it," Therese Singleton said.