At least one and possibly two different cat murderers are operating on the city's northwest side.

In a grisly reprise of several other similar killings in the Timbergrove area, one of which affected us personally, the Houston Chronicle has reported this week that Sandy Luna's kitty Lucky was disemboweled and put on display in a neighbor's yard in late July.

The Timbergrove killings have taken place on both sides of West 11th Street and T.C. Jester, though there seems to be a cluster of them west of White Oak Bayou.

We also received a report today of nine cats found dead this morning several miles up T.C. Jester in the Inwood neighborhood. It is believed that they were poisoned. These cats were semi-feral felines whom some in the neighborhood regularly fed. Three were found dead in one woman's driveway, with the other six found near other homes.

Coupled with this outrageous unrelenting heat, sickos like this are making it a terrible time to be an outdoor kitty on the northwest side.

"Please be careful if you live in this area and let others know," advises tipster Christina Fojas. "Possibility of poison makes it dangerous for every living thing in the community."

If you see any suspicious activity, you are urged to call the Houston Police Department's non-emergency number (713-884-3131).