Louisville Metro Police Department's Homicide Unit is seeing a higher murder clearance rate this year compared to last.Just days ago, police made three murder arrests within eight hours, all for separate deadly shootings. LMPD Lt. Donny Burbrink talked with WLKY about how detectives got to those arrests."An investigation for a homicide is a crawl," Burbrink said. "It is literally a crawl because you have to sift through so much information."These are all things that Burbrink and the team of 15 detectives working on Louisville's murder cases understand well."That phone call that they get to make to that family that you're finally providing them the answers they've been desperately seeking, that's fantastic," he said. "That's the best reward that you can ever give somebody."Four grieving families got that phone call on Tuesday."You would hope you would have more days like that day," Burbrink said.Edgar Cruz Hernandez, 18, is now charged with murder and tampering with evidence. He's accused of shooting into the car of 18-year-old Khalil Laghmani and 20-year-old Muhammad Abdi near Hike's Lane.In a different case, Jorge Ortiz Parra is also facing a murder charge. Police said that he shot and killed Emilio Martin-Suarez and injured another woman in July on Southside Drive.Later Tuesday, officers picked up 37-year-old Jeffrey Way, charging him with the murder of a man on Mellwood Avenue."There was a litany of things that went into that," said Burbrink. "Good investigative work by the detective, good communications and citizens help, and that's a really big part. You have no idea how many times the information that comes through on 574-LMPD has led to a huge breakthrough on a case, an arrest of someone who took someone's loved one and closure to a family that experienced the worst they ever will. Sometimes that tip just gives you that landmark, and it helps you to navigate through all the things you're looking for, and it's like now it makes sense, and it gives you that context and sometimes that guidance, that little bit of context really drives you to where that investigation needed to go in the first place, but you just didn't know."All of those factors have led to a murder clearance rate of about 45 percent, which is 10 percent higher than last year. "That doesn't sound too high, but when you're dealing with all the issues we're dealing with when it comes to manpower when it comes to community trust, lack of resources," Burbrink said. "When we start looking to everything. You have a 45% clearance rate with the hand that we're dealt, you feel pretty good about that. But what's better is when you have a 45% clearance rate, but your conviction rate is 100%, or 95%."Other statistics are also showing promise.Non-fatal shootings are down 32% from 2021, and homicides are down 6%."When we get the opportunity to have assistance from Louisville, that's usually where we see our clearance rate go up," Burbrink said.He said there is still work to be done for the families that are still waiting for their phone call."Yeah, we're not getting the closures that all of the families want," Burbrink said. "But the ones that we are getting, they're meaningful, powerful, and they stand the test of time when it comes in front of a jury, and that's more important in my opinion than the closures."Burbrink described the large amount of communication between their department and prosecutors to speak about evidence when the cases get ready to go to trial.