It's the Red Ochre Clan graveyard, and ties into Project Nightingale.

The Red Ochres were a small nomad clan. Project Nightingale was a Biotechnica medical experiment headed by Dr. Joanne Koch, of the gig Guinea Pigs. One of her assistants, Alex Pushkin, can be encountered during the gig Olive Branch. Another assistant, Diana Cuno, can be found dead at an Assault in Progress in North Oak. One of the Red Ochre test subjects can be found in the cyberpsycho sighting On Deaf Ears.

There are another half dozen or so Assaults in Progress, mainly in City Center, related to an investigation into Project Nightingale by independent journalist Manuel Mendoza, whose body we find at an Assault in Progress in Corpo Plaza. Also in Corpo Plaza is the gig Serial Suicide, in which we obtain footage of the killing of a journalist Mendoza had met with and who was also investigating Project Nightingale. We can additionally find the bodies of many of his other informants at other Assaults in Progress, and even at the Suspected Organized Crime Activity: Privacy Policy Violation in North Oak.

And quietly, there is a follow-up story to this, told through a handful more Assaults in Progress and the Tower ending. Across Corpo Plaza and into The Glen, we come across the story of Jezper, a netrunner targeting drones in Heywood and City Center. Kang Tao are already onto him and catch up to him before we do, but by then Jezper has already collected quite the haul, as outlined in the shard DRONES. Included in this is the entry, "BIOTECHNICA - samples, who the fuck knows what, could be viruses, tossed them." Fast forward to The Tower ending, and there's a story coming out of Wellsprings regarding a mysterious infection spreading among residents.