President Barack Obama, center, shakes hands with Roseburg Mayor Larry Rich, left, as Oregon Gov. Kate Brown, right, looks on following their meeting with families of the victims of the Oct. 1, shooting at Umpqua Community College, Friday, Oct. 9, 2015 in Roseburg, Ore. AP Photo
ROSEBURG, United States鈥擴S President Barack Obama met in Oregon Friday with relatives of victims of a deadly rampage at a community college, as shootings on two more school campuses left two people dead and four wounded.
READ: Oregon gunman killed himself after police wounded him
Hundreds gathered outside the gate to the local airport to greet Obama, where he earned a mixed reception.
While one sign said 鈥淲elcome to Roseburg,鈥� others read 鈥淥bama is Wrong鈥� and 鈥淣othing Trumps Our Liberty鈥濃�攃lear signs that the president鈥檚 visit to the rural, conservative community is not appreciated by all.
READ: Obama voices anger over Oregon shooting, urges gun control
Obama delivered an impassioned plea for stricter gun controls after last week鈥檚 shooting at Umpqua Community College in Roseburg, in which a 26-year-old gunman shot dead nine people and then committed suicide.
鈥淚鈥檝e obviously got strong feelings about this,鈥� he said during his hour-long meeting with families at Roseburg High School, attended by Oregon Governor Kate Brown, who previously updated the president on efforts to support them.
鈥淲e鈥檙e going to have to come together as a country, but today is about the families,鈥� Obama said.
But the father of one girl who was shot in the back and survived by playing dead accused the president of politicizing the tragedy, and said earlier this week that he had declined an invitation to meet him.
鈥淥n principle, I find that I am in disagreement with his policies on gun control, and therefore, we (the family) will not be attending the visit,鈥� Stacy Boylan told Fox 黑料社.
The publisher of the local paper, David Jaques, has also denounced the visit, saying Obama was not 鈥渨elcome here to grandstand for political purposes.鈥�
The city of Roseburg had issued a statement prior to the visit saying such comments did not represent the community as a whole, and that the president would receive a warm welcome.
After meeting with families who lost loved ones, Obama thanked a group of first responders for their service and met with Umpqua Community College leaders to express his condolences.
The October 1 shooting in Roseburg has revived the thorny debate on gun control in America鈥攁nd two more deadly incidents on Friday were sure to fuel the discussion.
鈥楥onfrontation鈥� in Arizona
In Arizona, one person was killed and three others suffered multiple gunshot wounds at Northern Arizona University in the city of Flagstaff before the gunman was captured.
The first emergency calls came through to police at 1:20 a.m., when most NAU students would have been in bed.
鈥淭wo of our student groups got into a confrontation. The confrontation turned physical and one of our students shot the other students. Four of our students were shot,鈥� said NAU police chief Gregory Fowler.
鈥淲e have one student deceased and three others being treated at the Flagstaff medical center.鈥�
The alleged shooter, named by police as 18-year-old freshman Steven Jones, was taken into custody and did not attempt to escape arrest. All the victims were male students.
It was not immediately clear what the confrontation was about, but Jones was cooperating with police, Fowler said.
NAU spokeswoman Cindy Brown told CNN that the incident occurred in a parking lot next to a residence hall on campus, which is a designated 鈥済un-free鈥� zone with 20,000 students.
Students described how they were woken up by a university text message warning them of the shooting or by calls from worried friends and family.
鈥淵ou don鈥檛 expect that in Flagstaff. I never thought it would happen here,鈥� student Megan Aardahl told CNN, describing how her room was just yards from where the shooting took place.
鈥淭here is a huge community here and everyone is reaching out and making sure everyone鈥檚 okay.鈥�
University president Rita Hartung Cheng said she was 鈥渟hocked and deeply saddened.鈥�
鈥淭his is not going to be a normal day at NAU. Our hearts are heavy,鈥� she added.
One dead in Houston
In Houston, one person was killed and another wounded in a shooting at a campus apartment complex at Texas Southern University, police said, adding that one possible suspect had been detained.
Houston police said the incident 鈥渄oes not involve an active shooter,鈥� but the university nonetheless placed the campus on lockdown and cancelled classes for the rest of the day.
In the wake of the Umpqua killings, Obama angrily called on Congress to do more and warned that failure to act on gun control was a 鈥減olitical decision,鈥� vowing to keep pushing for reform.