Searches are continuing in the lake at Walsall Arboretum after reports that a man was in difficulty in the water.
Emergency services were called to the scene at 7.30 last night, after a member of the public reported seeing someone in the water.
The police helicopter has been used in the search, but specialist teams from West Midlands Fire Service and West Midlands Police were unable to find the man.
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The 89-year-old was asleep when the men smashed through the patio doors. A second break-in was also reported in the area that evening.
A man of the same address has been charged with her murder.
Joel Richards was dropped at City Hospital on Sunday and later died. Five people have now been arrested.