"Houston Police Chief Harold Hurtt said Phillips bought the .38-caliber revolver March 18, two days after receiving an e-mail citing deficiencies in his job performance and saying that he was going to be reviewed. A copy of the e-mail was found in Phillips' lunch bag on the day of the shootings, police Lt. Larry Baimbridge said."
Editor's update: According to JSC Center Director Coats, the JSC employee who was murdered was David Beverly. The woman who was tied up and held hostage is Fran (Francelia) Crenshaw. The murderer was William Arthur Phillips.
"Authorities did not identify any of those involved in the ordeal. However, co-workers told MSNBC.com on condition of anonymity that the gunman was long considered an office hothead. He did not work at Building 44, but rather at a nearby office building, they said."
2 dead in JSC hostage standoff, Houston Chronicle
"The man is a contractor with Jacobs Engineering, Inc., according to the California company's CFO. Authorities are executing a search at a home in the 4000 block of Jade Meadow. Court records show the home belongs to William Arthur Phillips, Jr."