Ontario police are broadcasting thousands of text messages to phones used close to the site of a murder.
Police hope the messages will bring forward new evidence and eyewitnesses to the murder of John Hatch last year.
The phones have been identified as being in use on 16 December close to the route Mr Hatch travelled on the night he was killed.
About 7,500 people are expected to receive the messages asking them to contact police.
Read more on BBC.
Of note: the OPP said it used a court order to discover the numbers of all the active phones known to have been used last year in the vicinity.