Ruling on washing a suicide and praying over him

Dear Brothers & Sisters,
As-Salaamu-Alaikum wa Rahmatullahi wa Barakatuh. (May Allah's Peace, Mercy and Blessings be upon all of you)
One of our brothers/sisters has asked this question:
Can one who killed himself be washed and the (funeral) prayer offered over him?
(There may be some grammatical and spelling errors in the above statement. The forum does not change anything from questions, comments and statements received from our readers for circulation in confidentiality.)
Check below answers in case you are looking for other related questions:
A Muslim was buried in a Christian graveyard, and no funeral prayer was offered for him. What should they do?
It is better to have a large number of people to pray the funeral prayer

Answer:

Praise be to Allaah.

A person who has killed himself should be washed, prayed over and buried with the Muslims, because he is a sinner but he is not a kaafir. Killing oneself is a sin but it is not kufr. If he killed himself – we seek refuge with Allaah – he should be washed, shrouded and prayed over, but the khaleefah and important people should not pray for him, by way of rebuke, lest anyone think that they approve of what he did. If the khaleefah, ruler, judges, president or mayor do not pray over him in order to denounce this action and announce that it is wrong, then this is good, but some of the Muslims should still offer the (funeral) prayer for him. 

Whatever written of Truth and benefit is only due to Allah's Assistance and Guidance, and whatever of error is of me. Allah Alone Knows Best and He is the Only Source of Strength.
Your brother and well wisher in Islam

Related Answers:
Is it permissible for women to visit a graveyard?
Consolation for a mother whose son has passed away
Ruling on covering the bier with a cover on which are written some Qur’aanic verses or “Laa ilaaha ill-Allaah”
A Muslim was buried in a Christian graveyard, and no funeral prayer was offered for him. What should they do?
It is better to have a large number of people to pray the funeral prayer

Recommended answers for you:
How should we return the greeting of salaam from a non-Muslim?
A woman refusing to have intercourse with her husband
When is it permissible for a person to pray sitting in obligatory prayers?
Virtues of the Day of Arafaah
Praying for the newborn to be righteous in various ways