Since when does punishment have to be fair,
Seeing as we're talking about something that happened on US soil, the answer would be "since the constitution was ratified". That goes both ways of course, and I don't know the suspect well enough to say whether or not five years is fair. However, I do know his actions caused someone to commit suicide, and by sending him to jail maybe a few people will think twice before being giant pricks in the future. Not all of them will, but some of them will.
And FYI, no American gives a shit about having to do community service or counseling. Most of us have to do both at some point in our life without the law being involved, and they are at worst moderately annoying (though I do enjoy community service myself).









