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Should You Kill or Free Lorenzo Cabot in Fallout 4?

Kill Lorenzo for Jack’s delayed Artifact Gun, free and support him for recurring Mysterious Serum, or free him and turn against him to protect the Cabots.
WorldFallout 4? Length2 min Posted Quest giverVGSources Team
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Kill Lorenzo if you want Jack’s unique Lorenzo’s Artifact Gun; free him and side with him if you want recurring Mysterious Serum. You can also free Lorenzo, then turn against him to protect the Cabots. Spoilers for The Secret of Cabot House follow.

What happens at the choice?

The decision takes place during The Secret of Cabot House at Parsons State Insane Asylum. After the confrontation in the containment area, Jack asks the Sole Survivor to kill his father, Lorenzo, while Lorenzo asks to be released. The quest then sends you back to Cabot House, where you can still choose which side to support. Their competing accounts are character viewpoints, not a settled verdict on who is right.

Compare the three outcomes

Choice Outcome Reward and tradeoff
Kill Lorenzo in the cell Jack’s route; the Cabots are spared Lorenzo’s attack. Jack asks you to return after about one in-game week and eventually gives you Lorenzo’s Artifact Gun. Guides also list caps and experience, but their cap totals differ, so an exact amount is not dependable.
Free Lorenzo and side with him Lorenzo attacks his family at Cabot House. If you help him defeat the Cabots, the family does not survive. Lorenzo offers Mysterious Serum. He provides one vial at a time, so return to Cabot House when you want another.
Free Lorenzo, then oppose him You can turn against Lorenzo before or during the confrontation at Cabot House, preventing his revenge. This can still lead to Jack’s delayed weapon reward.

Choose based on what you want

Pick Jack’s side for the weapon

If Lorenzo’s Artifact Gun is the reward you care about, kill Lorenzo in the cell. Do not expect the weapon immediately: return to Jack after about a week of in-game time.

Pick Lorenzo’s side for recurring serum

If you want Mysterious Serum, free Lorenzo and help him defeat the Cabots. The serum is a repeatable reward, but it is handed over one vial at a time rather than as an unlimited supply all at once.

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Free Lorenzo first if you are undecided

Freeing him does not lock you into helping him. If you decide you want to protect the Cabots, you can oppose Lorenzo later at the family confrontation.

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One extra item in Lorenzo’s cell

A Massachusetts Surgical Journal is located in Lorenzo’s cell. It is an in-game collectible and separate from the choice’s main rewards.

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  • New next generation graphics and lighting engine brings to life the world of fallout. From the blasted forests of the common wealth to the ruins of Boston, every location is packed with dynamic detail
  • Intense first or third person combat can also be slowed down with the new dynamic Vault Tec Assisted Targeting System (V.A.T.S) that lets you choose your attacks and enjoy cinematic carnage

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