iThere were 709 homicides recorded in Wales and England in the 12 months up to March 2017, that's a 25% increase compared to 12 months up to 2016. That figure includes the 96 Hillsborough victims. If the Hillsborough victims are taken out of the fugures, there is still an 8% increase.
I can't find the clear up rates for Homicide at the moment, but they have usually been around the 95% mark in the past.