The children, aged 3 to 14, were found last night in various rooms of a two-family home on Cleveland's west side. According to the city of Cleveland, all victims lived at 1311 West 89th, the scene of the shooting.
Police Chief Michael McGrath says Crawford is "a danger to the community, so we're putting the pressure on to locate him."
At a police blockade, Lamar Arnold said he recognized Crawford from a police photo shown on television as the man who recently married his daughter.
Cleveland Police Lt. Thomas Stacho identified the victims in an email to the news media:
Rose Stevens, 25
Destiny Woods, 4, daughter of Stevens.
Dion and Davion Primm, 2, twin sons of Stevens.
Lechea Crawford, 30, sister of Stevens and wife of suspect Davon Crawford.