What evidence would have been required to convict a defendant of a prior murder?

What evidence would have been required to convict a defendant of a prior murder? (California, United States of America)

Is there any evidence that prior contact between a convicted murderer and a member of a criminal gang prior to and after the murder? (California, United States of America)

Is a defendant's prior hit and run conviction not an abuse of the court's discretion in admitting evidence of a prior hit-and-run conviction? (California, United States of America)

Does the identity of a defendant's prior criminal convictions preclude the use of those prior convictions as evidence at trial of the same criminal charges? (California, United States of America)

In what circumstances will the Court reverse the conviction of defendant in the second-degree murder trial of a man convicted of the crime of murder for making false statements about the crime scene? (California, United States of America)

Can a defendant charged with the murder or attempted murder of an intended target also be convicted of the murder of other, nontargeted persons? (California, United States of America)

Does a defendant have forfeited the issue of motive under section 1101, subdivision (b) of section 1103 of the Criminal Code for failing to provide evidence that the victim's prior criminal convictions would have bolstered his claim of self-defense? (California, United States of America)

Is sufficient evidence supporting defendant's conviction of murder based on the provocative act murder theory? (California, United States of America)

Can a defendant be found guilty of aiding and abetting a murder if the actual perpetrator of the same murder is convicted of murder? (California, United States of America)

What is the test required by the California Supreme Court to convict a defendant of a prior felony conviction? (California, United States of America)