Yes. I’ve seen the evidence.
Unlike the LACK of evidence that suicide is a mortal sin; every time.
Neither I nor the Church can know with moral certainty the interior disposition of another person's soul. All we can know is that, objectively speaking, killing is against the Commandment of God.
Excluding Samson (and I'll tell you it's reasonable to say he wasn't a suicide), there are six suicides in the Bible, and none of them are approved by God:
Abimelech; Saul; Saul's armor-bearer; Ahithophel; Zimri; Judas Iscariot.
Samson is legitimately a separate case because his intent was not to kill himself but to kill the Philistines, not be dying, but by bringing down the building. If he could have contrived to escape from the place alive as the sole survivor, there's no reason to think he wouldn't have done so: his own death was not his goal. This is called "Double Effect."
The Gospel of Christ gives us the most definitive reason for not destroying our bodies, as St. Paul says:
1 Corinthians 6:19-20
Do you not know that your body is a temple of the Holy Spirit, who is in you, whom you have received from God? You are not your own, you were bought at a price. Therefore honor God with your body
1 Corinthians 3:17
If anyone destroys God’s temple, God will destroy that person; for God’s temple is sacred, and you are that temple.
If you can’t or won’t define murder (which is the specific kind of sin we’ve been talking about all along) I can’t see the point of continuing this discussion. We’re not going to understand each other if we can’t agree on what is meant by a by a wrongful killing.