They never figured out what Light was doing. What he was really doing. They completely focused on the heart attack cases. If they paid more attention and used statistical analysis, they would have realized Light was also doing something else. Something that most people skimmed over and missed, while reading Death Note. He isn't actually only killing criminals. He is killing non-criminals too. En masse. People like parasites, cheaters, liars, swindlers. But to keep his support with the public, he only kills them via long-term diseases. If L can figure out that Light is a student in Japan, who only uses the Death Note during certain hours of the day in a certain time zone and preferring to kill local criminals, he could have also figured out that there is a statistical increase in the number of people growing ill from a certain disease and more importantly the disease ALWAYS being fatal, which would definitely be a statistical anomality you could detect with good enough data and research. By figuring this out, they could have significantly decreased the public support of Kira, which later enabled Light to do things, like using accomplices.
>>286688812And you didn't understand the central question of Death Note, because you don't have the cultural context required.
>>286688812>he only kills them via long-term diseasesretard, read the rules
>>286689431anon, I don't know every schizoposter on this website, nor do I care to.
>>286688906Death Note surpasses cultural barriers.
>>286688812He hadn't started doing that, he said he'd do it once all the true criminals were purged. There's a scene where Light hears of Mikami's plans to start targeting lesser offences of sloth etc and comments it's too soon to go that deep.
>>286688989What do I win?
L caught on to the heart attacks in a week and I doubt he had time to investigate broadly bad people to kill with diseases during the investigation. There was no time or reason for L to start looking into actuary tables or whatever.
