David Esco Welch (born 1957/1958) is an American mass murderer who shot and killed six people during a home invasion of his girlfriend's house in Oakland, California on December 8, 1986.

[4] On the night of December 8, 1986, in rage over the breakup and his missing pit bull, Welch and his new girlfriend, 29-year-old Rita Lewis, broke into the Mabrey family residence on Pearmain Street in Oakland.

From there, Welch began ransacking the place and shooting his gun at the sleeping people, killing Dellane, Valencia, Sean Orlando, Darnell, Kathy, and Dwayne.

[3][5] In 1989, a jury convicted Welch of six counts of first-degree murder, for which he received the death penalty, and shortly after was escorted to San Quentin State Prison to await execution.

[2] In May 2015, after spending 26 years on death row, Welch filed an appeal, in which he alleged that there were improper communications between trial court jurors and bailiffs.