The Texas Department of Public Safety has placed a suspect wanted on an Upshur County Capital Murder warrant for killing his ex-girlfriend and her sister on its Ten Most Wanted List. Alvin “Pookie” McKnight, 41, is considered armed and extremely dangerous and is affiliated with the 52 Hoover Crips gang. Upshur County Sheriff Larry Webb said McKnight’s friends and family know where he is. They’ve arrested one sister in the case.