Since Vaidehi was imprisoned, Bimbisara had been unable to get any food,
and the day of his death by starvation was getting closer and closer.  Also,
according to legend, hearing that Bimbisara worshiped the Holy eagle Peak
from the window, Ajatasatru blocked up the window and chopped off his
father's feet, rendering him unable to stand.

One day, Uda, the son of Ajatasatru, was suffering from a swollen finger.
King Ajatasatru sucked out its pus.  His mother, Vaidehi, having been freed,
happened to see the scene and said, "King Ajatasatru! Your father sucked pus
from your finger when you were a little boy, just as you have done." For the
first time, King Ajatasatru was impressed by his father's love.  So he
ordered his men, "Release my father immediatelyl"

The retainers rushed to the prison.  Bimbisara heard the retainers' footsteps
and misunderstood their intent, thinking that he was about to be executed.

"Oh, my foolish son has finally come to kill mel" So thinking, he died of a
heart attack.

Ajatasatru, having made his father die, grew more savage and took
pleasure in doing cruel things, becoming filled with anger.  Moreover,
from then on, tumors began to cover his whole body, afflicting him.
Because of the pain, he couldn't enjoy beautiful clothes or joyous music;
on the contrary, they irritated him.  The bad smell of the tumors spread
so far, so terribly, that even his maids couldn't stand to be close to him.
Suffering from these diseased boils, he began to reflect on his past conduct.
"This is repayment for murdering my innocent father and tormenting my
mother, I think.  The day that I fall into Hell cannot be far off."

His mother Vaidehi applied different kinds of medicine to his body, but
the tumors and boils went from bad to worse.  Ajatasatru told his mother,
"The tumors on my body have been caused mentally.

This is not a physical matter.  So, even the best doctor can't cure it." One
minister visited him and asked, "My lord!  Do you have something troubling
you?  You don't look well. Do you have physical or mental pain?"

The king answered, "Now I am suffering both physically and mentally.  I've
killed my father the king in spite of his innocence.  I've once been told by a
wise man that anyone who commits the five deadly sins will fall into Hell and
suffer.  No matter how skillful the doctors are, I can't be cured." And the king
lamented, writhing in pain.  Various ministers visited and consoled him one
after another, but the heart of Ajatasatru never rested in peace.

Then Jivaka called on him and asked, "My lord!  Are you able to sleep
soundly?" The kind answered, "Jivaka!  Now I am seriously sick.  No sort
of excellent doctor,  medicine or charm can ever heal me, who is so sinful
that I murdered an innocent father who put his faith in the Buddha.  Like
a fish stranded on land, like a deer captured by a trap, I have no pleasure.
Once a sage taught me that if the acts of your body, the words of your mouth
and the thoughts of your mind are not pure, you will be sure to go to Hell.
I am the very person that he was talking about.  How could I sleep well?"

Jivaka told him, "Good, goodl My lord, even if you've committed sin,
you have a deep sorrow of shame now.  Lord Buddha always teaches us
in this way, "There are two kinds of great teaching (saddharma).
One is renunciation,  the other is intervention.  The first way is to have
self-discipline and refrain from sinful acts, the second is to keep others off
the path of sin.  Also, renunciation is to have a sense of shame (in one's self)
and intervention is to bring to others a sense of shame.  If you don't have
a sense of shame,  you are not a human anymore but a beast.  It is shame
that makes you respect your parents and masters."

"My lord!  Lord Shakya once told us, "There are two kinds of wise men.  The
former is one who doesn't commit any evil acts, the other is one who, even
if he does commit a sinful act, has repentance.  Also, there are two types of
fools.; One commits a sin the other hides the sin which he has committed.
Even if you have committed a sin, if you have repentance from the bottom of
your heart and never repeat the sin, your sin will dissolve and you can be
pure."

"Good, my lord!  It was very wonderful of you to believe in the law of cause and
effect, of karma and recompense.  My lord!  You don't have to worry at all.  If
there is a person who hides his sin and doesn't have shame, who doesn't see
cause and effect, nor karma and recompense, and doesn't make friends with
good people, then such a person is called "icchantika", one who cannot attain enlightenment.  My lord!  You are not an "icchantika".  How can you not be
saved?"

"Prince Siddhartha, a son of King Suddhodana of the Kapila castle, attained enlightenment without any masters.  An he has deep compassion towards all
human beings, as if they were his only son, Rahula.  Now he is preaching to
his many disciples in the Sala Grove outside of Kusinagara.  My lord!
Shakyamuni had great compassion both toward his enemies and his parents.
Beyond the attachments of love and hatred, he is trying to save as many
people as possible.  Let's visit the Buddha in Sala Grove and by all means
let's sincerely listen to his teaching.

But Ajatasatru answered, "Jivaka! I really understand how merciful and
precious the heart of Shakyamuni is.  But I'm already a man of deadly sin.
My body is surrounded by my sinful karma, it stinks with filth and is going
to fall into Hell.  Even if I go to the Tathagata, he probably won't even talk
to me, because I am such a sinful man.  Please don't try to persuade me
anymore." So saying, he writhed in pain.  Then, they heard a great voice
speaking in the air.

"The supreme teaching of the Buddha is about to disappear now.  The deep
river of the Dharma is about to dry up.  The light of the great teaching is
about to go out.  The sun of the Buddha is about to set behind the mountain
of nirvana.  Great King!  If the Buddha passes away, nobody can cure your
serious sickness! Great King!  You already have made karmic causes to fall
into the Avici Hell!  I know!  The king can never be freed from these karmic
causes!  I just hope you, King, will go to see the Buddha immediately!
There is no one who can save you except Shakyamuni Buddha!  I'm advising
you because I have pity on youl"

Hearing this, Ajatasatru trembled with fear.
"Who are you?  Only your voice can be heard."
 

Note*

Where the Buddha converted Sariputra and Maudgalyayana

"King Ajatasatru possessed a very ferocious elephant. Devadatta, hearing that the
Buddha was coming to Rajgir, arranged to have the elephant escape. As the Buddha
came toward the city, Devadatta went to the palace terrace to see the Buddha killed,
but when the elephant came rushing at the Buddha, the Enlightened One tamed the
elephant with a few words, and the ferocious beast knelt at this feet."
(Mulasarvastivadin Vinaya)