For instance, in this case they've relied on social media, use of the press, their webpage etc. to ask people to come forward with some of the information. Of course, we don't know if they've been boots not the ground going and asking around themselves, but you'd think we'd have seen it on MSM. They're doing exactly what they're supposed to do in this day and age, but it might not get the results they would have 10 years ago when they probably would have knocked on more doors.
Police work has changed a lot. As a nation, we're expecting them to come through here and then who knows when there will be another protest? And as a big believer in democracy, I support both, so it is super complicated and I bet they're doing what they can to stay safe and keep civilization from tumbling off the deep end. It's just a much harder time to solve a homicide when the majority of your tools are on a computer.