(CNN) Police arrested a Syracuse University student in connection with a series of new graffiti markings in support of protests against several recent racist incidents on campus, authorities said Thursday.

Syracuse Police Sgt. Matthew Malinowski said the student is accused of criminal mischief in the fourth degree and of making graffiti.The suspect was identified in connection with four incidents of graffiti in and around the Irving Garage and Bird Library, Syracuse University Department of Public Safety said

The arrest comes after a series of racist incidents, and the university leadership's slow response to it, have sparked student protests and a sit-in on campus.

Some of the protesters had proposed 19 recommendations to the university administration, and on Thursday, Chancellor Kent Syverud said he agreed to sign 16 of them. He suggested "minor revisions" to the three others, and also said he planned to meet with Jewish students on Thursday morning.

"Implementing these recommendations is the right thing to do. They will make our community stronger," he said.

Syverud previously noted that a total of 12 cases of racist and anti-Semitic graffiti have been found on or next to Syracuse's campus to date.

Police are still investigating four recent incidents of racist graffiti in other areas of campus. Two of the incidents, both in Day Hall, used language derogatory to African-Americans. In a third incident, in Flint Hall, a post-it note had anti-Native American language on it. And in the fourth incident, at the Comstock Art facility, graffiti had racist language derogatory to Asians, according to police.

In addition, four students have been suspended for participating in a verbal assault directed at an African-American student last week, Syverud announced Wednesday.

A total of 14 people were involved in the incident, 10 of whom were referred for "appropriate discipline," Syverud added. Nine were students from other schools and have been referred for discipline at the schools they attend.

"The New York State Police's hate crimes task force has been partnering with us and we're working with the New York State Division of Human Rights on this matter," Syverud said while briefing the university's senate.

Syverud said reports of white supremacist material being sent by AirDrop to various students Monday night at the Bird Library was probably a hoax. AirDrop is an app that lets users share files between Apple devices via Bluetooth or Wi-Fi.

"To date, law enforcement has not been able to locate a single individual who directly received an AirDrop. Not one," Syverud said. "It was apparent that this rumor was probably a hoax, but that reality was not communicated clearly and rapidly enough to get ahead of escalating anxiety."

Chancellor points to treatment of his family

Syverud spoke emotionally about his own experience fighting for affirmative action, holding back tears while talking about how his family was treated in the South.

"I spent six years of my life publicly fighting to permit affirmative action in higher education admission based on race, leading to the Supreme Court's decision. I did this while raising a mixed-race family in the South."

"My kids were threatened ... my wife was subjected to many racial epithets," Syverud said, his voice cracking. "Their car tires were slashed, my kids' dog was shot. There was little investigation, those responsible were never found. That was then, that was the South. It was hard for my wife, it was hard for my kids. But this is Syracuse. This is 2019. I do not accept this hatred here and now, this is not who Syracuse is at its best, and is not who we can let ourselves become."

"We just cannot let our students of color, our Jewish students, our Asian students, or any of our students, or faculty and staff, be afraid on this campus because of who they are," Syverud added.

Students walk out of school forum

Students walked out of a community forum at the university Wednesday night after Syverud said he couldn't promise that all student demands would be met "this instant."

Students rally against racist incidents on Syracuse's campus Wednesday night.

The students previously gave officials a Wednesday deadline to address short and long-term demands for changes in how the university handles racial incidents.

The demands include requiring faculty and staff to undergo diversity training, establishing a housing portal where students can select roommates based on mutual interests and identities, and allocation of $1 million for the creation of a curriculum "that educates the campus on diversity issues, specifically anti-racism."

Syverud said he couldn't agree with all student demands, noting he sought clarification on certain items and needs to involve and discuss some of the issues with the Board of Trustees.

"So if the question is, can I produce agreement to every word at this instant. The answer is I cannot," Syverud said.

Dozens of students chanted "Sign or Resign" as they left Hendricks Chapel following Syverud's comments.

Later in the forum and after the student protesters departed, Syverud said he had agreed to many of the students' demands.

"Excuse me, if you actually read the response, which I know many of you have, there are many, many of them I can sign and can agree to and have agreed to," Syverud explained. "If there's frustration that the wording is slightly different, I interpret the words 'we agree' to be 'I have signed and I have agreed.'"

Syverud also released a chart Tuesday showing how the university is responding to student demands.