Some of the views in this thread are kind of worrying. Suicide isn't a cowardly act. A person is severely unwell when they get to that point, and without appropriate help and support they may end up following through, but that's not on them.
And also, I'd just like to say to anyone who is reading this and has lost someone to suicide and is angry at the person they've lost; it's okay to be angry if you are. It's okay if you're not. The thing is, with grief, it comes in all weird shapes and sizes. Some people don't feel much of anything towards one person, despite being quite close to them, yet for someone they don't know very well personally can be absolutely heart broken. Whatever you feel is valid.
As I said before, I was angry at my best friend for killing herself. Many reasons why - she left us behind, she didn't reach out for help, she was a hypocrite for telling me to "keep going" only a few weeks before taking her own life, etc. It's a perfectly normal reaction to be angry when you lose someone and losing someone to suicide is no different. However, that doesn't mean I didn't see her struggle, believe me I did. I knew how her mental health problems affected her. It's just sad she is no longer here, but equally I'm glad she's no longer suffering.
Reactions to things like losing someone you love to suicide are often confusing, intense and downright horrific; it takes a long time to heal from it. But the victims are not cowards in anyway shape or form. They were just ill people who felt absolutely trapped and saw no way out.