In a tumultuous week of violent protests, more than 100 university students have been arrested, a contract cleaner at Wits university has died and the cost of destruction to university property has risen to more than half-a-billion rands. No arrests have been made in connection with some of the major damage to property but the police have launched a culpable homicide investigation into the death of cleaner Celumusa Ntuli.Ntuli had been cleaning the Jubilee Hall residence at Wits when protesters discharged fire extinguishers on Tuesday last week.He became ill and was hospitalised for three days.At the weekend Ntuli's condition deteriorated and he was to be re-admitted to hospital but died before arriving. The cause of death has not been confirmed.The Times has established that at least 118 students at nine universities have been arrested during the campaigns for free tertiary education , of whom 37 have been released or had charges withdrawn. Others have already appeared in court or are awaiting dates to do so.Most were arrested in clashes with the police on or near university campuses.No arrests were reported in Western Cape, Eastern Cape and Mpumalanga, but reports late last night said three people had been arrested in Limpopo.At a press conference in Pretoria yesterday, Minister of Higher Education and Training Blade Nzimande said that the bill for the destruction of property that characterised the student protests had reached R600-million since the beginning of last year.He said there would never be free education for all. "That is not government policy," he said.He suggested that students were making demands of the government that they knew it could not accede to.Last week President Jacob Zuma called for the harsher treatment of students guilty of crimes such as public violence and malicious damage to property during protests."The destruction of property is a criminal offence and will be treated as such by the law enforcement authorities," Zuma said."We have directed the police to ensure that all such cases reach the courts and that those responsible answer for their actions."At the University of KwaZulu- Natal, where the entrance to a Pietermartizburg student residence was set alight, at least 55 students were arrested;At Wits University, 39 students have been arrested since the protests began;The University of Fort Hare, after almost two weeks of protest, closed its campuses because of an attempt by "a certain group of students to destabilise the academic programme".All the CCTV cameras on the university's Alice campus have been destroyed.A maintenance building was set alight on Thursday, resulting in millions of rands in damage.No arrests have been reported.At the University of Pretoria two cars were petrol-bombed in student protests yesterday. No arrests have been made.The police arrested 22 Central University of Technology students in Bloemfontein yesterday. The students have been charged with malicious damage to property and taking part in an illegal gathering after 300 of them marched to the SABC's Bloemfontein office, said national police spokesman Vuyisile Ngesi. The students allegedly damaged a government vehicle.Four students were arrested last week at North West University's Mahikeng campus. They have been charged with malicious damage to property and public violence.Earlier this year the University of Cape Town was granted an interim interdict by the High Court against five people, including three students, as a result of their alleged involvement in unlawful activities.UCT also convened student disciplinary tribunal hearings against 12 students, leading to the expulsion of five of them.UCT students have often spoken out on behalf of outsourced workers and last year won the concession that outsourced staff would eventually be employed direct by the university.Despite the police confirming arrests around the country, a spokesman for the National Prosecuting Authority, Luvuyo Mfaku, said arrests had been made only in Gauteng and KwaZulu-Natal.Mfaku said: "When the police arrest [students] they are obliged to take the matter to court and if there is a case we will prosecute." - Additional reporting by Matthew Savides..