A teen who held a gun to a St. Paul homeowner’s head last winter and threatened to “blow (his) head off” as he ransacked the man’s house will spend nearly five years in prison.

Martonio Jeremiah Austin, 19, was sentenced this week in Ramsey County District Court on one count of first-degree burglary with a dangerous weapon, court records say.

Previous charges of kidnapping and aggravated robbery were dropped as part of the plea deal reached with the state after Austin agreed to plead guilty to the burglary count in February.

Lamar Smith Jr., 18, was also charged for his role in the home invasion. Smith pleaded guilty to first-degree burglary in January and received a four-year stayed prison sentence. He was also ordered to serve one year in the Ramsey County jail.

The two held up a couple at gunpoint at a home in the 1200 block of Albermarle Street after knocking on the door around 9 p.m. Nov. 29.

When the homeowner opened it, he saw Smith, a family acquaintance who had previously done yard work for him, standing outside. Then he saw another man he didn’t recognize — Austin — standing behind him with a gun.

The resident tried to close the door but Austin fired a bullet through it and the assailants pushed their way inside.

Smith then punched the resident in the face and said, “You know what this is,” before he and Austin forced the resident and his girlfriend to lie face-down in a bedroom as the men ransacked the home, according to criminal complaints filed against them.

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Two men face felony charges in Bloomington home invasion They fled the scene with cash and watches stolen from inside the residence and were arrested by police after a foot chase.

Austin’s attorney, public defender Erik Sandvick, said he had argued for a shorter sentence for his client on account of his youth, his struggles with mental health issues and his exposures to lead as a child.

He said his client made a brief apology in court before his sentencing.

“He definitely felt remorseful,” Sandvick said. “He pleaded guilty and accepted full responsibility for his part.”

Smith’s attorney could not be reached for comment on his sentence.