The victim was soon identified as , a young Nigerian man who had arrived in the islands not to sightsee, but to find a missing family member. His presence in Lerwick had been brief and marked by visible distress, a detail that now haunted the local team as they realized the scale of the violence he had faced.

Perez, already weary from years of policing these islands, found himself once again balancing the fragile safety of his home against the encroaching darkness of the world outside. "Shetland" Episode #5.1 (TV Episode 2019) - IMDb

Perez and DS "Tosh" McIntosh quickly discovered that this was no simple local dispute. Further remains were found in a holdall dumped at sea, with evidence suggesting the body had been partially dissolved in acid—a signature of professional, organized crime.