Oklahoma City police are investigating a homicide after they said a man was shot and killed when he tried to break into a business early Thursday morning.According to police, officers responded just after 1 a.m. to a shooting at a business near Southeast 22nd Street and Eastern Avenue. A man, later identified as 42-year-old Daniel Hardwick, was trying to break into the business when he was shot by the business owner, police said.Police later learned that the business owner was operating a marijuana grow without proper license. Investigators confiscated 480 plants worth about $1,500,000. The business owner was booked into the Oklahoma County Jail on a complaint of unlawful cultivation of marijuana. Police said the Oklahoma County District Attorney’s Office will make the final determination as to whether any charges will be filed regarding the homicide.Anyone with information is urged to call the Homicide Tip Line at 405-297-1200.