The guy is in police remand and is being interogated , the Judge gave the remand on Friday for 6 days so coming week he'll be back in court and the proceedings will be done against him , till now there is no proof that he can claim diplomatic imunity and diplomatic imunity is for minor things like a traffic voilation or a car scraping another car etc not for homicide.
only if his country waives it. generally in times past when people have been killed by diplomats such as in accidents it has been waived, But not always.
Injury and death
The Romanian chargé d'affaires in Singapore, Silviu Ionescu, was allegedly behind a drunk-driving hit-and-run accident in December 2009 that resulted in the death of a 30 year old man and seriously injured two others. He left Singapore for Romania three days after the accident. The Romanian foreign ministry suspended Ionescu from his post. A coroner's inquiry in Singapore, which included testimony by the Romanian embassy driver, concluded with the coroner holding Ionescu solely responsible for the accident. An Interpol Red Notice was subsequently issued for his arrest and possible extradition notwithstanding the fact that Romania had not waived his diplomatic immunity and had commenced criminal proceedings against him in Romania. The Singapore government argued that by reason of Article 39(2) of the Vienna Convention, Ionescu was no longer protected by diplomatic immunity.
The deputy ambassador of the Republic of Georgia to the United States, Gueorgui Makharadze, caused an accident in January 1997 that injured four people and killed a sixteen-year-old girl. He was found to have a blood-alcohol level of 0.15%, but was released from custody because he was a diplomat. The U.S. government asked the Georgian government to waive his immunity, which they did and Makharadze was tried and convicted of manslaughter by the U.S. and sentenced to seven to twenty-one years in prison. However after serving three years of his sentence, he was returned to his home country where he spent two more years in jail before being paroled.
An American Marine serving his embassy in Bucharest, Romania, collided with a taxi and killed the popular Romanian musician Teo Peter on December 3, 2004. Christopher Van Goethem, allegedly drunk, did not obey a traffic signal to stop, which resulted in the collision of his Ford Expedition with the taxi the rock star was travelling in. Van Goethem's blood alcohol content was estimated at 0.09% from a breathalyser test, but he refused to give a blood sample for further testing and left for Germany before charges could be filed in Romania. The Romanian government requested the American government lift his immunity, which it has refused to do. In a court-martial, he was acquitted of manslaughter and adultery but was convicted of obstruction of justice and making false statements.
A Russian diplomat accredited to Ottawa, Canada, drove his car into two pedestrians on a quiet residential street in January 2001, killing one and seriously injuring the other. Andrei Knyazev had previously been stopped by Ottawa police on two separate occasions on suspicion of impaired driving. The Canadian government requested that Russia waive the diplomat's immunity, although this request was refused. Knyazev was subsequently prosecuted in Russia for involuntary manslaughter, and sentenced to four years in prison. His appeal of the sentence was denied and he served time in a penal colony.
An American diplomat, Consul General Douglas Kent, stationed in Vladivostok, Russia, was involved in a car accident on October 27, 1998, that left a young man, Alexander Kashin, crippled. Kent was not prosecuted in a U.S. court. Under the Vienna Convention on Consular Relations of 1963, diplomatic immunity does not apply to civil actions relating to vehicular accidents. However, on 10 August 2006, a U.S. Court of Appeals ruled that since he was using his own vehicle for consular purposes, Kent may not be sued civilly.
The Burmese ambassador in Sri Lanka in 1979 shot his wife as she got out of the car after seeing a player in a night-club band of whom she was enamoured. As recalled by Gerald Hensley, then Vice-Dean of the Diplomatic Corps in Sri Lanka; Hensley was based in Singapore and accredited from New Zealand as High Commissioner to Sri Lanka as well: The next morning the neighbours in Cinnamon Gardens (Colombo) were surprised to see the ambassador stacking wood on the back lawn and, connoisseurs of cremation, quickly grasped that he was building a pyre. When the police were called the ambassador opened the metal front gates just enough to say that there was no trouble and to remind them that his house was Burmese territory. Then he went back to work. The houses around his long back garden were now alive with fascinated spectators as he emerged with the body of his wife, placed it on the pyre and set it alight. He was well connected at home but after an awkward interval he was recalled.