"The facts constituting probable cause need not meet the standard of conclusiveness and probability required of the circumstantial facts upon which a conviction must be based."

Probable cause to arrest exists when the totality of the facts and circumstances within the officer's knowledge would cause a reasonable person to believe that an offense has been committed and that the defendant is the one who committed it.

Although evidence of a plea of guilty or an offer to plead guilty or of statements made in connection therewith are not admissible, the state is not foreclosed from proving relevant facts from independent sources even though those facts were discussed during plea negotiations.

Finding the evidence insufficient to support one aggravating circumstance, when there are four valid aggravating circumstances and no mitigating circumstances, does not warrant a reversal of the sentence.

There is thus a reasonable argument that defense counsel should be permitted to contend that a death sentence would have no retributive or deterrent value in the instant case.

Although the state statutory procedures did not prevent the trial judge from considering any mitigating circumstances

In such cases, a reversal of the death sentence would not necessarily be required, as any error that occurred in the consideration of the two inapplicable aggravating circumstances was harmless.

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