COURTESY OF THE JATCKO FAMILY

A St. Louis-based musician has been missing since early Friday morning, and now his family is asking for the community's help in searching for answers.Nathan Jatcko, 31, was last seen around 1:30 a.m. Friday morning at his apartment on Lawn Avenue, near South Kingshighway, his father John Jatcko says. When Nathan missed a rehearsal and then a performance at the Monocle on Friday night, friends and family began to worry."Nathan is a good man. He's a completely normal, level-headed, good guy. Well-respected, great musician," John Jatcko says. "But Friday he missed a rehearsal and a gig that he had — not his style."Nathan wouldn't have missed a performance without finding a sub or at least calling to cancel, his father says. So after initial attempts to find Nathan proved fruitless, his family met with police at Nathan's home and filed a missing persons report.Nathan's car, a white 2009 Toyota Matrix hatchback with license plate number WK1-C2H, was gone from his home as well. Curiously, though, there was food left in his cats' dish."He left food for his cats and then disappeared. I don't know what it means, but it's...." John says, trailing off.Nathan's phone appears to be turned off or without power, John says, and calls go straight to voicemail."We've tried to call him, we've tried to send text messages, we've tried to send emails," John says. "We're getting nothing back."Nathan has been a fixture in St. Louis' music scene for many years, playing piano and keyboards for groups including Pavlov's Dog, Yankee Racers, Kentucky Knife Fight and more. He frequently collaborates with local favorites Emily Wallace and Dawn Weber. A consummate professional, he's highly regarded in St. Louis' jazz community."We're just worried about him," John says. "If anybody has seen him, seen his car, knows anything about him: Call the police department ."