Two conflicts or am I just being repetitive?

I'm going to keep this short.

My main character goes crazy halfway in the book. He's trying to find the person who killed his father.

What is the best option? I know #1 is a little repeptive, but the emtions at the end may help the story. But it could hurt it. Opinions please?

Option 1 (original):

He finds a person who works with his father's killer first and tries to get info out of them about his father's killer. My main character gets the information, but accedentaly kills the person in the process. He is hit with guilt and doubt until he finds and tries to kill his father's killer.

Option 2:

Just have the main character figure out where his father's killer is via the internet. Everyone around him tells my main character not to go and confront his enemy, but he does it anyway.

I think it's all how you write out each conflict.

On paper/in the plotting stages, stories tend to look and feel a different way than they actually pan out. This makes plotting major conflicts in detail somewhat dangerous, because you can lock yourself into a plotline that ends up not fitting the story after fifteen pages.

I'd start writing it and see how the characters want to go; personally I think a hybrid of online searching, finding the person and hurting/killing them, followed by continued hunt for the killer is a slightly stronger (and more flexible) plot. But that's just me. Your characters might end up wanting to do something totally different, depending on their current situation (age, time period, income class) and what's the easiest for them at the start.

Two cents.