@justice:
First, if you look at the box Irie first got, CH.13 pg.6 in the corner of the box, there's a small little container next to the wine. If you compare that to his ring box on Ch.145 pg.14 and ch.172 pg.5 They look very similar.
I think that's just the scan quality. In the tankoban, the container looks like some jar of mayonnaise or something.
Second,Ch.153 pg.18. Hibari says "I'm not so stupid… as to be replaced,of course." Which would mean he knows someone would be trying to get rid of his future self. This could also be the reason he went missing.
I think he was refering to the fact that Gokudera and Yamamoto were switched with their past selfs. Meaning, he's not stupid enough to get hit by a bazooka in the past. Also, his "going missing" was actually researching the boxes.
Then on Ch.145 pg.3 Gokudera says, Kyoko, Haru, I-Pin and Lambo were hit with the Bazooka from behind. Which is really wierd.
Two things unexplained though is there another Bazooka user, since it doesn't seem like Chrome and Lambo would meet anywhere. Also why haven't they hit Ryohei with the Bazooka. Since Kyoko remembered talking to him at there house about Tsuna's dissapearance.
Err, when Chrome was shot, Lambo was already in the future so that couldn't happen anyways. I think it's Future Gokudera and Yamamoto going around shooting people and they probably knew that Ryohei was in Italy. Switching him then would have been really bad so they didn't. (this all theory, of course)
Third, what do you all think about Byakuran being a good person?
Since Future Gokudera said on CH.137 pg.15, that if Irie didn't exist, "Byakuran wouldn't be like this."
It would seem Irie must be very persuasive.
I think this is referring to the fact Irie made lots of contributions on the developments of the 7^3 ray things or started the whole thing. Plus the grudge against the Vongola.
Fourth, How long ago was Tsuna killed?
Since his coffin was still above ground, it must be recent. Why wouldn't they bury him.
I doubt Haru, and Kyoko both knew,since Kyoko was away, and Haru was expecting Tsuna to rescue them. Kurokawa wasn't surprised to see, the 10 years younger Tsuna, and also tried contacting him ch.152 pg.16 It also seems weird that his parents would go on Holiday to Italy after there son was killed. So whose covering up his murder?
I think it was 2 days before Tsuna came into the future when the Vongola fell. And maybe someone (not Gokudera) knew they were going to get switched eventually so didn't want to bury him or they were going to move the coffin…? (it kind of is out in the middle of nowhere)
I'm not sure if even Yamamoto knew he was dead. His first reaction to him was "Oh, did you get smaller?" not "Oh, you're alive?"
Finally, could the Bovino family be behind the 7^3 rays. And Irie becoming evil. Since there's an extra little package on Ch.13 pg 7, and at the end of the chapter it says the Nightmare will continue until Irie returns the box.
Irie only felt that the nightmare would continue. And the extra package (the one with the cow print, right?) was already given to Lambo. (the contents were all used too.) I doubt the Bovino were behind the 7^3 seeing they're an extremely weak family. Although, it would be a pretty cool twist, I can't really see it happening.