And the simple answer to your question is "Yes". The abandoned application destroys your later application regardless of being filed within a year or by the same inventor. (Grace period cannot help in such an occasion)
First option: If the first application is alive, you just amend it. No need to file another application.
Second option: Even if the first application has already been abandoned, you can still rely on the so-called "priority right". (see http://www.patenttrademarkblog.com/priority-date/)