The 31-year-old alleged Amsterdam hitman Jeffrey S., who was recently arrested in Spain, was celebrating his birthday at that time in a pub in Torremolinos. This is reported by the Spanish police. S. is a friend of the Amsterdam criminal Omar Lkhorf, who was sentenced to life in prison. Both are considered part of the group of Houssine Ait S., leader of the Mocro mafia. He was on the run from the Dutch authorities, where he is suspected of involvement in several liquidations that took place there. The Dutch police tipped the Guardia Civil in June that S. might be in Mijas, after which the investigation continued.

Jeffrey S. was arrested in Spain in 2018 together with a Norwegian and two other Dutch suspects for the liquidation of a Colombian, in August 2016 in Mijas (southern Spain). His co-defendants were the Amsterdam criminal Hicham M., who has since been sentenced to life in prison, and Mitchell Jansen, who was liquidated in Colombia at the end of 2016. The Colombian died on the spot, his girlfriend was seriously injured in the assassination attempt. A total of 12 shots were fired at the couple. S. was detained in Spain for two years as a suspect, but was released after the trial was postponed. He had not returned to court since then and remained a fugitive.

According to the Spanish police, the four suspects belonged to a group of hitmen. The Dutch authorities state that Jeffrey S. was the facilitator of several murders in the Netherlands and was in direct contact with the gunmen by providing them with information and weapons.

S. is also associated with the liquidation of a Frenchman in his sixties near Marbella at the end of 2019. S. is said to have worn a mask of The Joker and shot the Frenchman with five bullets..