I say, let's keep it simple:
BT11201072.PDF
Page 6
11. Records obtained from MySpace provided to forensic examiners show the following. The only IP address to log onto Bennett's MySpace page after 10:36:40 p.m. on June 25, 2008 (other than law enforcement) was IP72.177.143.240, which is registered to Kevin Grosenheiden of San Antonio, Texas. There were two log ins from IP 72.177.143.240; one log in at 8:18:39 p.m. PST the second at 8:25:56 p.m. PST. Since the last log by JACQUES' computer, the time on the blog was manually changed to June 25, 2008 at 11:46 a.m PST, suggesting that the blog was edited from IP 72.177.143.240.
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D. Statements of Raymond GAGNON
15. On June 30, 2008 and July 1, 2008, GAGNON was interviewed by members of the Vermont State Police and the FBI. GAGON admitted that he rents a room for residential purposes from Kevin Grosenheider at 5414 Timber Pond Road, San Antonio, Texas. He also admitted that on June 25, 2008, he accessed Bennett's MySpace page from a laptop computer located at 5414 Timber Pond Road after being given log in information (user name and password) from JACQUES on June 25, 2008. He advised that when he accessed the account, he changed the user name and password to the account. He denied changing any blog posting information.
It doesn't say from his (Gagnon's) computer, it says from a laptop computer located at blah, blah, blah.
I have seen absolutely nothing to indicate or imply that Grosenheiden is involved in this other than to stupidly throw out Grogan's safe and laptop.