Morning Wrap: 5/23/12

Top of the morning’s news:

• After the arrest of a suspect in the kidnapping and presumed murder of Morgan Hill teenager Sierra LaMar, authorities say her abduction appears to have been purely random. Chronicle; Plus: What led to the arrest. Mercury News
• A San Francisco elementary school principal was arrested and charged with drunken driving and hit and and run. Chronicle
• More fallout from Facebook’s disappointing IPO: the feds are investigating whether underwriter Morgan Stanley acted inappropriately by sharing negative information about the company to select clients. Mercury News
• Marin County supervisors approved a ban on smoking in apartment and condominium buildings in unincorporated areas. Marin IJ
• Oakland has put up a roadblock in the Neptune Society’s plans for a facility that would cremate up to 3,000 people per year. Oakland Tribune