Officers said the shooting occurred on Tuesday evening during a meeting of property owners in a restaurant in the village of Dossenheim near Heidelberg.
A police statement said that during the meeting heated words were exchanged and one man stormed out.
He returned later with a pistol and opened fire, killing two men and wounding five others before fatally shooting himself, according to the statement.
The five wounded were rushed to the hospital, where one was reported in serious condition.
COMMENT RULES: Comments that are judged to be defamatory, abusive or in bad taste are not acceptable and contributors who consistently fall below certain criteria will be permanently blacklisted. The moderator will not enter into debate with individual contributors and the moderator’s decision is final. It is Belfast Telegraph policy to close comments on court cases, tribunals and active legal investigations. We may also close comments on articles which are being targeted for abuse. Problems with commenting? firstname.lastname@example.org