The Golf Driving Range Murder Case

Situation
A relaxing day at the driving range leads Conan, Kogoro, and Ran to their next explosive case, as the president of a leading electronics manufacturer meets an untimely end. With many suspects and few clues, will Conan unravel the mystery in time to catch a killer?

Resolution
Hide= The culprit is Tomofumi Minami. The bomb was actually not contained in the golf ball Eisuke Tachibana hit but rather the golfball that was already stuffed into the driver head he was using. Tomofumi was the only one who could do it as he was supposedly repairing some shaft damages on Tachibana's driver for two nights. The ball they discovered at the crime scene was just a substitute. Tomofumi planned to frame Yasui for the murder by faking a stomach ache so Yasui would collect the ten balls Tachibana would use and leave the explosion as the only uninjured suspect. Tomofumi claimed he did not care if innocent people died, yet he saved Conan from the explosion at the last minute.
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Motive
Tomofumi killed his boss for overlooking his talent and framed Yasui who received preferential treatment for brown-nosing.

Sub/Dub Edit
In the original version, the reason why Tomofumi killed Eisuke was due to hating him because he would be overlooking his talent and favor Minoru instead. while in the English Dub (Where the character's names were Americanize) Tomofumi (who goes by Michael Achurbee) is the unwanted son of Tachibana (Einstein Achurbee in the dub) and the reason why killed his own father and attempted to frame Minoru Yasui (Sean Yoeman in the dub) was because he could take over the company instead of Yasui, who was selected as the successor.