An act that constitutes the crime of second-degree murder.
The criminal offence of murder in a form defined as less serious than first-degree murder; the precise distinction may vary by jurisdiction but typically involves second-degree murder being intentional but not premeditated.
Someone suicidal; someone likely to kill themselves.
Likely to commit, or to attempt to commit, suicide.
Extremely reckless.
Highly likely to certain to result in the deaths of the participants; dangerous or reckless to such a degree as to be tantamount to suicide for those taking part.
Pertaining to suicide.