A juvenile was arrested by Delhi Police, in connection with the killing of a 27-year old Tik-Tok star in Dwarka's Najafgarh.
The victim was identified as Mohit More, a resident of Bahadurgarh. He was shot dead on Tuesday by three bike-borne assailants.
The 17-year old accused, a resident of Najafgarh, was apprehended at around 4:10 pm on Thursday from Dhulsiras Mor near Village Dhulsiras, Dwarka, said police.
Three men, of which two were wearing helmets, opened fire at More who had come to a photostat shop to meet a friend.
Police suspect personal enmity to be the reason behind the killing.
"During interrogation, the juvenile revealed that he was one of the three assailants who shot the gym trainer," Sanjeev Kumar Yadav, Deputy Commissioner of Police (Special Cell), said.
One country-made pistol and two live cartridges were recovered from his possession, the DCP said.
The victim had gained popularity by making videos on the much popular 'Tik Tok' app and had lakhs of followers.
Further investigation, in this case, is underway.