Clyde Baker taught children to read by day and smoked crack by night. In the end, police say, he killed to support his habit.
On June 12, his craving for the addictive rush led him to the apartment of 64-year-old Henry Frank Butler, a retired road construction worker, investigators say. Butler was found that afternoon, stabbed and lying in dried blood.
"Crack really took him over," said Broward County sheriff's Detective Glenn Bukata.
When police caught up with the William Dandy Middle School teacher Friday morning at his mother's Pompano Beach house, they found crack rocks and a pipe in his pockets.
He was charged with first-degree murder.
Detectives say Baker would roam his rundown neighborhood near Fort Lauderdale at night with his twin brother, Clinton, trying to peddle second-hand housewares, comforters, canned food and candy to score money for drugs.
He was arrested in a March drug sweep after, investigators said, he arranged a $10 crack buy for an undercover officer.
Baker told police he wasn't a teacher, but an unemployed day laborer, so officials had no reason to notify the school district.