Constantin Sorinel Marcu, from Craiova, Romania, was a powerful figure in the Riviera Maya gang before falling out with the group’s leader. Convicted of attempted murder in Romania and wanted by INTERPOL, he arrived in Mexico in 2014 and was put in charge of security for the gang’s most lucrative ATMs in Playa del Carmen. But a feud developed between him and the gang’s leader, Florian Tudor, aka “The Shark.” After the pair fell out, Marcu began to sabotage the gang’s ATMs. Marcu’s parents said the final straw was when Tudor discovered his former right-hand man had been speaking to the FBI. In April 2018, three of The Shark’s men attacked Marcu outside a DHL office in Cancún, beating him and stabbing him so badly his spleen had to be removed. Two months later, he was shot in the back of the head outside Tudor’s home and died at the age of 44.