A man was arrested yesterday and charged with murder in one of the six attacks that occurred in less than a week in the Langley Park section of Prince George's County.

Barranquel Huerta-Sanchez, 28, was charged in the slaying of Lucas Lazaro Felipe, 25, who was found unconscious Sunday night in the 1400 block of University Boulevard. He had been beaten, stomped and cut, county police said.

The arrest was the first in any of the attacks that in recent days have focused attention on violent crime in the densely populated area.

Police said that after being found about 11 p.m., Felipe was taken to a hospital for treatment.

He died about 7:40 a.m. Wednesday, having never regained consciousness, they said.

According to police, Huerta-Sanchez lives in the block of University Boulevard where the victim was found.

No motive in the attack could be learned last night. It also could not be immediately learned how Huerta-Sanchez was identified as a suspect.

All of the recent Langley Park attacks occurred within a five-block area. However, authorities have not drawn any connections between the assaults.

One police source has said some of the attacks might have involved debts, and one might have stemmed from an argument involving teenagers.

The first of the attacks occurred almost within view of where Felipe was found. Two men were fatally slashed Aug. 10 in a shopping mall parking lot, and another man was wounded.

On the night of Aug. 12, a teenage girl was cut in the neck after an argument near a community center.

About two hours before Felipe was found on University Boulevard, another man was attacked about two blocks away by someone who nearly severed his hand with a machete, police said.

Police have encountered difficulties in trying to identify suspects in the attacks.

At a meeting with officials and in interviews with reporters, neighborhood residents indicated that distrust of the authorities discourages them from providing information.

One woman said her husband was taken away by immigration agents who came to her door and identified themselves as police.

"How do you expect us to believe in you?" the woman asked at the neighborhood meeting Monday.