BOLO has been trending recently following news of a manhunt in Michigan after the deadly mass shooting at Oxford High School.
US Police department's occasionally announce BOLO's when fugitives are on the run, with the most recent announcement in relation to the recent shooting in Michigan.
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What does 'BOLO' mean?
BOLO means "Be on the Look-Out."
In the field of policing, this is sometimes refered to as an all-points bulletin which contains an important message about a suspect or item of interest, which officers may be in search for.
The term is usually used used for individuals or cases which are classified as dangerous or for crimes of a high priority.
"Be on the Lookout" is also the most common definition forBOLOon Snapchat, WhatsApp, Facebook, Twitter, Instagram, and TikTok.
Why is 'BOLO' trending?
Marshals and police in the US state of Michigan had launched 'BOLO' for James and Jennifer Crumbley after they failed to show up for a court hearing.
The fugitive's are the parents of the alleged school mass shooter Ethan Crumbley, who was arrested earlier this week after killing four students at Oxford High School.
Mr and Mrs Crumbley were arrested today and were charged with involuntary manslaughter after they went 'on the run'.
It is alleged they bought the weapon as a Christmas gift and ignored warning signs from their son as late as the day of the shooting.
The parents are alleged to have switched off their phones while police monitored the devices' pings and withdrawn $4,000 from a cash machine on Friday.
A fugitive warrant was issued for Mr and Mrs Crumbley, who failed to appear for a court arraignment on Friday, and the Oakland County Sheriff's Office posted a 'be on the lookout' (BOLO) notice for them onFacebook.
Oakland County Sheriff Michael Bouchard told CNN: "If they think they're going to get away, they're not."
Two lawyers for the couple, Shannon Smith and Mariell Lehman, said in an earlier statement the Crumbley's were returning for their arraignment and insisted "they are not fleeing from law enforcement."
When news of an active shooter at the school broke, Jennifer Crumbley sent Ethan a text message, urging him, "Don't do it," according to prosecutors.
James Crumbley, meanwhile, drove straight home to check whether the gun was there before calling police to report that it was missing and that his son might be the shooter, McDonald said.
