Police initially believed Statement the case to be a murder-suicide , but two days later arrested Arrest 35-year-old San Francisco resident Binh Thai Luc , a friend of one of the victims , and charged Arrest him with five counts of murder , five counts of robbery , and two counts of burglary .

Following a seven-week trial Judgment_communication and a week of deliberation Legal_rulings , on December 11 the jury found Coming_to_believe Luc guilty of all the murder and burglary charges .

On 18 September 2012 , Police Constables Nicola Hughes and Fiona Bone , two Greater Manchester Police officers , were killed Killing by Dale Cregan in a gun and grenade ambush while responding Response to a report of a burglary in Greater Manchester , England .

A local witness reported Reporting their activity to the police as a potential burglary in progress .