No. Keith's death was all on Dan. He chose all by himself to kill his brother. He even admitted himself on his deathbed that it was his fault alone.

By covering for Deb they didn't think Dan would do something like kill Keith?

@TheBayHarborButcher said:

No. Keith's death was all on Dan. He chose all by himself to kill his brother. He even admitted himself on his deathbed that it was his fault alone.

Nobody saw it coming?

@TheBayHarborButcher said:

No. Keith's death was all on Dan. He chose all by himself to kill his brother. He even admitted himself on his deathbed that it was his fault alone.

Did Keith deserve to die?

@MickyMac said:

Since she tried to kill Dan and lead him to think it was Keith.

No I blame Dan because Keith told him multiple times that he had nothing to do with that fire, and Dan was there at the police station when the cops cleared him from the accusation of being guilty. Dan let his anger get the better of him so it's his own fault for shooting that gun.

His speech to Nathan in season 10 says it all.