A spokesperson for South Yorkshire Police confirmed that detectives have called in specialist resources to conduct extensive searches underwater and on land.
Today, the Regional Underwater Search Team and the Force’s Tactical Support Group have been carrying out searches in the Sheffield canal, and adjacent land at Tinsley Park Road, near to Broughton Lane, Meadowhall.
A police helicopter was also circling above the scene.
DCI Simon Palmer leading the investigation said: “This area has become of significant interest to the investigation during the course of the enquiries into Danny’s death, and it is expected the search of this area will take several days to fully complete.
“As our enquiries continue we are continuing to urge those with information about Danny’s death to come forward and speak to is, which can also be done anonymously.
“We are particularly keen to hear from anyone with dash-cam or CCTV footage and are urgently trying to identify and locate an Audi vehicle seen traveling away from the area immediately after the assault.
"It is believed to be a dark estate type vehicle and could be potentially abandoned within the Sheffield area.”
Emergency services were called to Fretson Green in the Manor area at 12.34am on 17 April following reports that the 32-year-old had been found seriously injured. Danny had suffered a stab wound, and was sadly pronounced dead at the scene. A post mortem examination confirmed the injury as cause of death.
Daniel Chadwick, 29, of Melville Drive and Ross Turton, 29 of Daneswood Avenue, both in Sheffield, appeared in court this week charged his murder.
If you have any information please report this by calling 101. If you do not wish to speak to police, you can stay completely anonymous, please call Crimestoppers on 0800 555 111. The incident number to quote is 29 of 17 April.
You can also send information directly to the investigation team using our Major Incident Public Portal: https://mipp.police.uk/operation/14SY19X02-PO1