WACO, Texas (AP) — Texas prosecutors who have failed to convict a single person in the three years since a Waco shooting left nine bikers dead are trying a new tack of targeting fewer cases, but attorneys for the bikers say the evidence is so shaky and the lead prosecutor's credibility so damaged that it will be difficult to make the remaining charges stick.

The May 17, 2015, shooting also left 20 wounded and nearly 200 arrested at the Twin Peaks restaurant. Investigators say it was sparked by rivalries between the Bandidos and Cossacks motorcycle clubs ahead of a meeting. Waco police monitori...