1.   A software tester there, Michael McDermott, has been charged with using a semiautomatic rifle and a shotgun to kill his co-workers.

2.   He is charged with methodically shooting seven employees at Edgewater Technology Inc. in Wakefield, Mass., where he worked as a software tester.

3.   Last December, a software tester allegedly killed seven co-workers at a Massachusetts Internet consultancy.

4.   The software tester held an assault rifle in one hand, a shotgun in the other.

5.   Volt Computer Services of Redmond, which furnishes software testers, reported it offers an extra two days vacation annually.

6.   With the advent of the digital society, twentysomethings have carved out a niche as software testers, programmers and reviewers.

7.   McDermott had worked at Edgewater as a software tester since March, company officials said.

8.   McDermott was a software tester at Edgewater Technologies.

9.   McDermott was a software tester who had worked at the company since March, said Mike Stanley, a team projects leader at Edgewater.

10.   McDermott was a software tester who had worked at the company since March, said Mike Stanley, a team projects leader.