A German citizen prepared for the murder of the head doctor Marina Kagan for more than a week.
30-year-old Daniel planned in advance the reaction of a 60-year-old woman - he received treatment from her in New Moscow.
The previous morning a man pushed a woman down the stairs, hit her head several times on the stairs and then suffocated her with a bag. He then took the deceased's car and disappeared.
The suspect was arrested and charged with murder and car theft, the capital's investigation committee reported.
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