RICHMOND, Va. (AP) -- Virginia Tech failed to properly care for a mentally troubled student gunman and waited too long to warn faculty and students after he killed his first two victims in a shooting spree that eventually claimed 31 more lives, including his own, a panel's report concluded.

Had university officials not waited more than two hours to tell the campus about the initial shootings, lives could have been saved when Seung-Hui Cho later began his massacre inside a classroom building, according to the report, released Wednesday night.

"Warning the students, faculty and staff might have made a difference," the panel wrote. "So the earlier and clearer the warning, the more chance an individual had of surviving."

But the report concluded that while swifter warnings might have helped students and faculty, a lockdown of the 131 buildings on campus would not have been feasible.

And while the first message sent by the university could have gone out at least an hour earlier and been more specific, Cho likely still would have found more people to kill, the report found.

"There does not seem to be a plausible scenario of a university response to the double homicide that could have prevented the tragedy of considerable magnitude on April 16," the report said. "Cho had started on a mission of fulfilling a fantasy of revenge."

The eight-member panel, appointed by Gov. Timothy M. Kaine, spent four months investigating the worst mass shooting in modern U.S. history. Panel chairman Gerald Massengill declined to comment Wednesday night, but was scheduled to speak at a news conference with the governor on Thursday.

Kaine said earlier Wednesday he did not conclude from the report that either Virginia Tech President Charles Steger or campus police Chief Wendell Flinchum should resign.

The report detailed a breakdown in communication about the gunman, who had shown signs of mental health problems for years. His middle school teachers found signs of suicidal and homicidal thoughts in his writings after the Columbine High School shootings in 1999. He received psychiatric counseling and was on medication for a short time. In 2006, he wrote a paper for his Virginia Tech creative writing class about a young man who hates students at his school and plans to kill them and himself, the report said.

The university's counseling center failed to give Cho the support he needed despite the warnings, including his referral to the center in 2005 because of bizarre behavior and concerns he was suicidal, the panel said. It blamed a lack of resources, misinterpretation of privacy laws and passivity.

Individuals and departments at Virginia Tech were aware of incidents that suggested his mental instability, but "did not intervene effectively. No one knew all the information and no one connected all the dots," the report said.

The report said the response by university and Blacksburg police to the dormitory shootings was well coordinated, and said the police response at Norris Hall was "prompt and effective," as was triage and evacuation of the wounded.

But it also noted that university police may have erred in prematurely concluding that the first two shootings were the result of a domestic dispute.

Holly Sherman, whose daughter Leslie was killed, said the report's findings were what she expected, including "a number of critical errors in judgment."

"At Virginia Tech, he exhibited seriously deviant behavior that went unchecked, and the faculty did not take adequate steps to put him in check," she wrote in an e-mail to The Associated Press.

Diane Strollo, whose daughter Hilary was shot and survived, said she was thankful the panel recognized that an earlier warning could have derailed Cho's plans for Norris Hall.

"Had some or all of the student body been notified that 2 students were gunned down that morning, they may have had heightened sensitivity to the sound of gunshots and other suspicious activity," Strollo wrote in an e-mail to the AP. "One or two minutes of notice may have been critical in saving more lives in Norris Hall."

Derek O'Dell, who was shot in the arm, said he probably wouldn't have gone to class that morning if he had received word that a shooting had occurred in a dormitory and the killer hadn't been caught.

"I don't think anybody would have," he said.

Associated Press writers Dena Potter, Bob Lewis and Vicki Smith contributed to this report.

On the Net:

Panel's report: http://www.governor.virginia.gov/TempContent/techPanelReport.cfm

A timeline of some of the events leading up to and following the April 16 shooting spree at Virginia Tech, where student Seung-Hui Cho killed 32 people and himself:

-- Fall 2005: English professor Lucinda Roy alerts university officials about Cho's disturbing creative writings, which have alarmed her and students.

-- November and December 2005: Two women complain to campus police that they have been harassed by Cho, but they consider his behavior annoying, not threatening. Neither presses charges.

-- Dec. 13, 2005: Cho's suitemate calls police to report that Cho seems suicidal. Cho is temporarily detained at Carilion St. Albans Behavioral Center near Radford, Va.

-- Dec. 14, 2005: A special justice rules that Cho is a danger to himself, but not others, and orders him to receive outpatient mental health treatment.

-- Spring 2006: Cho writes an essay for a fiction class about a young man who hates students at his school and plans to kill them and himself.

-- April 14, 2007: Someone sees a suspicious male wearing a hooded sweatshirt in Norris Hall. Another person sees at least one of the classroom building's exterior doors chained shut.

-- April 16, 2007: Cho kills two students at 7:15 a.m. in a dormitory. More than two hours later he kills 30 others and himself inside Norris Hall, where he had chained several exit doors shut.

-- April 19, 2007: Gov. Timothy Kaine appoints an independent panel to look into the shootings and how authorities handled them. The eight-member panel is led by former Virginia State Police superintendent Gerald Massengill and includes former Homeland Security Secretary Tom Ridge.

-- June 11, 2007: Families of some of the Virginia Tech victims demand representation on the panel, saying they feel ostracized from the investigation. They are later denied representation, but Kaine asks that panel member Carroll Ann Ellis, a victim advocate, serve as a liaison to the families.

-- July 18, 2007: Family members of several victims attend another panel meeting and plead with panel members to assign accountability for the tragedy. They also ask for a federal commission to be appointed.

-- Aug. 22, 2007: Virginia Tech releases the findings of its own internal review of the shootings, and recommends more monitoring of troubled students, locks on classroom doors and other security measures.

-- Aug. 24, 2007: The governor's panel holds final a closed-door meeting to put finishing touches on its report.

-- Aug. 29, 2007: The panel releases its report, concluding that Virginia Tech officials might have saved lives if they had notified faculty and students sooner about the first two shootings. It also criticizes school officials for not addressing Cho's mental problems.