HOUSTON (AP) —
    Police continued their search for a suspect Monday after releasing two men detained last week in connection with the fatal shooting of an 18-year-old student at Texas Southern University.
    Classes resumed Monday at the Houston campus where freshman Brent Randall was killed in a parking lot outside a school apartment complex. A second person was wounded in the gunfire and remained hospitalized in stable condition, police said.
    Police said Friday they had detained two of three men seen running into the Courtyard Apartments after the shooting earlier in the day. The man still being sought was then seen fleeing through a side door.
    Police spokesman Victor Senties said Monday the men who were questioned have since been released.
    Randall and the wounded man, whose name has not been released, were standing outside the apartments when they were approached by man who opened fire with a semi-automatic handgun.
    It was the third shooting within a week and the second within hours Friday at the university just south of downtown Houston.
    Police said a motive in Randall's death remained unknown and it was unclear if last week's shootings are related.
    The school was placed on lockdown for several hours after the shooting was reported and classed then were canceled for the remainder of Friday.
    School spokesman Kendrick Callis said university administrators were meeting Monday to address student concerns about safety.
    "We're working on all that and discussing the aftermath of all this and what they're going to do," Callis said. "I know when I got here this morning there was a police officer in my building, which is normally not the case."
    A patrol car also was outside the building, he said.
    Randall's death came the same day as a fatal shooting at Northern Arizona University, and about a week after eight students and a teacher were fatally shot at a community college in Oregon.