"Does someone go to hell for committing suicide?"

Those who are adamant that a person who takes his life is committing a mortal sin, and will go to hell, are basing their belief on church doctrine rather than on the Bible. Scripture is silent on the subject. There are no verses that say "He who takes his own life shall be damned." According to Scripture, only one sin does not have forgiveness, and that is blasphemy of the Holy Spirit (see Mark 3:29 footnote). That means there is forgiveness for every other sin.

Some quote 1 Corinthians 3:17, which says that God will destroy someone who "defiles" the temple of the Holy Spirit. Yet, there is disagreement about what it means to defile the temple. Does this include suicide? Does it include illicit drug abuse (slow suicide), prescription drug abuse, cigarettes (deliberately breathing in poisons that will eventually kill), tattoos, over-eating (digging a grave with your spoon), or alcohol abuse?

God forbid that we add to the pain of someone who has lost a loved one through the tragedy of suicide, by making a judgment about their eternal destiny. God is the ultimate Judge, and we should therefore leave the issue in His hands. It would be wise to follow the biblical example and not come to any verdict in the case of suicide.