Walt had a host of reasons to get rid of Lydia - she was a threat to his family, which he was no longer able to protect (and she's already shown she has no qualms getting rid of people, regardless of the size of the threat); she was both the distributer of the blue meth and a potential supplier of methylamine; she was ...
When Walt agrees with her proposal, Lydia provides him with the names. After Lydia leaves, Walt removes his hat from the table, revealing a hidden vial of ricin presumably meant to poison her. Walt then hides the vial in his house.
At the end of the final season of Breaking Bad, Walt poisons Lydia Rodart-Quayle's Stevia with ricin.
During Walt and Lydia's meeting he asks her if she thinks once she hands him the list of names that he will murder right there in the restaurant. In the series finale, Breaking Bad: Felina (2013), in this very same restaurant, is where Walt poisons her with the ricin, leading to what would be her death.
Ultimately, Lydia's neuroticism is her fatal flaw. Walt poisoned the tea she obsessively drinks to ease her anxiety.
Lydia dies. It has nothing to do with length of time, amount of ricin, hot water denaturing ricin or anything else you can possible think of.
All he needed to do was to open a little hole on the Stevia packet, put the ricin in, close the hole back with a little plaster of same color or glue. Lydia is always nervous when she's on a meeting, it was a low chance she would notice something little on the Stevia packet.
Later in the season, Walt and Todd use hydrofluoric acid to dispose of Mike's body after Walt shot him in a fit of rage ("Gliding Over All").
She's extremely risk-averse and would never want to attract the attention of the police. Ergo, by telling her that it's ricin, Walt knows that this dooms her to die without getting the medical help that would save her from dying, but doom her to prison.
So in the end, Walt did poison Lydia, the woman to whom he'd left his blue meth empire at the end of the first half of Breaking Bad's fifth season, solving the much-debated mystery about who the ricin was for.
In the final scene, Hank figures out that Walt is Heisenberg while perusing Walt's copy of “Leaves of Grass” on the toilet. The book is inscribed: “To my other favorite W.W. It's an honor working with you.
Throughout the five seasons of Breaking Bad, Walt caused the death of almost 300 people, directly or indirectly. As the character descended into wickedness, Walt didn't necessarily seem to fall under the label of a psychotic murderer.
1. when he first started cooking meth (episode 1 season 1), putting his finances above the law and the well being of others. 2. When he turned down help from Gretchen and Elliot (season 1 episode 5), making it clear that his actions are out of pride rather than to help his family.
Breaking Bad - Hank Figures It Out Scene (S5E8) | Rotten Tomatoes TV - YouTube.
It's revealed in Season 5 that Ted ended up hospitalized with severe neck trauma. He has to keep his head in a huge protective brace and his head was completely shaved.
He knew Jesse was being held against his will. He used the vocabulary of “partner” to provoke Jack into proving Walter wrong by showing him Jesse's true situation.
Death usually occurs 36-48 hours after exposure, but if a victim survives a few days, he has a good chance of recovering (though he will almost certainly have permanent organ damage).
Mike kills Chris and later breaks into Lydia's house in Houston. As he is about to execute her, Lydia's panicked pleas about her daughter affect him. He decides to spare Lydia in exchange for her becoming Walt's new methylamine supplier. Mike calls Walt and accepts a partnership in the new meth operation.
Walter used Lily of the Valley instead of ricin because it has similar attributes to ricin without actually BEING ricin. If it was actually ricin in Brock's system chances are Jesse would have been taken by the FBI.
The real reason why Gus killed Victor in such a brutal fashion is that it sends a crystal clear message to the two men: if they put the operation at risk, then Gus wouldn't hesitate to kill either one of them as well.
She didn't get it. That's one of the reasons he left when the DEA showed up at the park: he needed his buyout from Walt if he was going to set her up.
Jesse didn't knew if Walt killed Mike or not, but he had suspicious because of one reason: Mike was totally against the idea of killing his guys in prison, after Mike's "depart", Walt killed them anyway.
In the season 5 episode Confessions Jesse realises that Saul and Huell took his ricin cigerette on the orders of Walt (Jesse finds this out by threatening them with a gun) which causes him to also realise that Walter was behind the whole false story of Gus poisoning Brock when it had been him all along.
Brock obviously recognized and was scared of him when he went to Andrea's house in the last season, but based on his actual reaction to Walt, I don't think Brock knew for certain that Walt had been the one who poisoned him. Otherwise he would have reacted much more violently to Walt's presence in his home.
Later on, Walt himself admitted to Jesse that he poisoned Brock with a Lily of the Valley plant just to keep Jesse on his side in order for them to orchestrate the death of Gus Fring, but by that point, their relationship was already in shambles.